messages
listlengths
2
2
difficulty
stringclasses
3 values
tags
listlengths
1
3
[ { "role": "user", "content": "Simplify: 13/4 * 9/16" }, { "role": "assistant", "content": "<reasoning>\nMultiply: (13/4) × (9/16) = (117/64) = 117/64 after simplification.\n</reasoning>\nFinal Answer: 117/64" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "Calculate simple interest on a principal of ₹31245 at 4% per annum for 1 years." }, { "role": "assistant", "content": "<reasoning>\nSI = P × R × T / 100 = 31245 × 4 × 1 / 100 = 1249.8.\n</reasoning>\nFinal Answer: 1249.8" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Given A = [6, 7, 11] and B = [3, 10, 12], find A symmetric diff B." }, { "role": "assistant", "content": "<reasoning>\nSymmetric difference contains elements in exactly one of the sets. Result = [3, 6, 7, 10, 11, 12].\n</reasoning>\nFinal Answer: [3, 6, 7, 10, 11, 1...
medium
[ "set_theory" ]
[ { "role": "user", "content": "Increase 890 by 40%." }, { "role": "assistant", "content": "<reasoning>\nIncrease by 40%: 890 × (1 + 40/100) = 890 × 1.4 = 1246.0.\n</reasoning>\nFinal Answer: 1246.0" } ]
easy
[ "percentage", "arithmetic" ]
[ { "role": "user", "content": "Simplify: 9/19 * 20/4" }, { "role": "assistant", "content": "<reasoning>\nMultiply: (9/19) × (20/4) = (180/76) = 45/19 after simplification.\n</reasoning>\nFinal Answer: 45/19" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "In an arithmetic progression with first term 50 and common difference 11, find the 44th term." }, { "role": "assistant", "content": "<reasoning>\nnth term = a + (n-1)d = 50 + (44-1)×11 = 50 + 473 = 523.\n</reasoning>\nFinal Answer: 523" } ]
medium
[ "sequences", "arithmetic_progression" ]
[ { "role": "user", "content": "Calculate: 748 mod -462" }, { "role": "assistant", "content": "<reasoning>\n748 mod -462: 748 = -462 × -2 + -176, so remainder = -176.\n</reasoning>\nFinal Answer: -176" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Find the area of a rectangle with length 83 and width 44." }, { "role": "assistant", "content": "<reasoning>\nArea = length × width = 83 × 44 = 3652.\n</reasoning>\nFinal Answer: 3652" } ]
easy
[ "geometry", "area" ]
[ { "role": "user", "content": "If the ratio of A to B is 47:36 and A = 85, find B." }, { "role": "assistant", "content": "<reasoning>\nA/B = 47/36, so B = A × (36/47) = 85 × 36/47 = 65.1064.\n</reasoning>\nFinal Answer: 65.1064" } ]
medium
[ "ratio", "proportion" ]
[ { "role": "user", "content": "Calculate: 3 + -183" }, { "role": "assistant", "content": "<reasoning>\nAdd 3 and -183: 3 + -183 = -180.\n</reasoning>\nFinal Answer: -180" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Calculate: 948 ÷ -150" }, { "role": "assistant", "content": "<reasoning>\nDivide 948 by -150. 948 ÷ -150 = -7 (integer division).\n</reasoning>\nFinal Answer: -7" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Calculate: 372 - -335" }, { "role": "assistant", "content": "<reasoning>\nSubtract -335 from 372: 372 - -335 = 707.\n</reasoning>\nFinal Answer: 707" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Solve for x: 9x + -37 = -460" }, { "role": "assistant", "content": "<reasoning>\nSubtract -37 from both sides: 9x = -423. Divide by 9: x = -47.\n</reasoning>\nFinal Answer: -47" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Simplify: 7/9 - 16/8" }, { "role": "assistant", "content": "<reasoning>\nSubtract fractions: 7/9 - 16/8. LCD = 9. Result = -11/9.\n</reasoning>\nFinal Answer: -11/9" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "Decrease 701 by 17%." }, { "role": "assistant", "content": "<reasoning>\nDecrease by 17%: 701 × (1 - 17/100) = 701 × 0.83 = 581.83.\n</reasoning>\nFinal Answer: 581.83" } ]
easy
[ "percentage", "arithmetic" ]
[ { "role": "user", "content": "Calculate: -13 + -931" }, { "role": "assistant", "content": "<reasoning>\nAdd -13 and -931: -13 + -931 = -944.\n</reasoning>\nFinal Answer: -944" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "436 is what percentage of 951?" }, { "role": "assistant", "content": "<reasoning>\n(436/951) × 100 = 45.8465%.\n</reasoning>\nFinal Answer: 45.8465%" } ]
medium
[ "percentage", "ratio" ]
[ { "role": "user", "content": "Evaluate using order of operations: 7 + 36 * 48 - 3" }, { "role": "assistant", "content": "<reasoning>\nBODMAS: multiply first: 36×48=1728, then 7+1728-3=1732.\n</reasoning>\nFinal Answer: 1732" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Solve for x: 12x + 20 = 572" }, { "role": "assistant", "content": "<reasoning>\nSubtract 20 from both sides: 12x = 552. Divide by 12: x = 46.\n</reasoning>\nFinal Answer: 46" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "8 workers can complete a job in 26 days. How many days will 15 workers take?" }, { "role": "assistant", "content": "<reasoning>\nTotal work = 8 × 26 = 208 worker-days. New time = 208 / 15 = 13.8667 days.\n</reasoning>\nFinal Answer: 13.8667" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "18 is what percentage of 381?" }, { "role": "assistant", "content": "<reasoning>\n(18/381) × 100 = 4.7244%.\n</reasoning>\nFinal Answer: 4.7244%" } ]
medium
[ "percentage", "ratio" ]
[ { "role": "user", "content": "Increase 996 by 7%." }, { "role": "assistant", "content": "<reasoning>\nIncrease by 7%: 996 × (1 + 7/100) = 996 × 1.07 = 1065.72.\n</reasoning>\nFinal Answer: 1065.72" } ]
easy
[ "percentage", "arithmetic" ]
[ { "role": "user", "content": "Find the area of a trapezoid with parallel sides 37, 44 and height 9." }, { "role": "assistant", "content": "<reasoning>\nArea = (1/2) × (a + b) × h = 0.5 × (37+44) × 9 = 364.5.\n</reasoning>\nFinal Answer: 364.5" } ]
medium
[ "geometry", "area" ]
[ { "role": "user", "content": "Find the area of a triangle with base 46 and height 68." }, { "role": "assistant", "content": "<reasoning>\nArea = (1/2) × base × height = 0.5 × 46 × 68 = 1564.0.\n</reasoning>\nFinal Answer: 1564.0" } ]
easy
[ "geometry", "area" ]
[ { "role": "user", "content": "If the ratio of A to B is 41:30 and A = 46, find B." }, { "role": "assistant", "content": "<reasoning>\nA/B = 41/30, so B = A × (30/41) = 46 × 30/41 = 33.6585.\n</reasoning>\nFinal Answer: 33.6585" } ]
medium
[ "ratio", "proportion" ]
[ { "role": "user", "content": "Increase 971 by 45%." }, { "role": "assistant", "content": "<reasoning>\nIncrease by 45%: 971 × (1 + 45/100) = 971 × 1.45 = 1407.95.\n</reasoning>\nFinal Answer: 1407.95" } ]
easy
[ "percentage", "arithmetic" ]
[ { "role": "user", "content": "Calculate: 728 mod -164" }, { "role": "assistant", "content": "<reasoning>\n728 mod -164: 728 = -164 × -5 + -92, so remainder = -92.\n</reasoning>\nFinal Answer: -92" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Evaluate using order of operations: (13 + 43) * (30 - 36)" }, { "role": "assistant", "content": "<reasoning>\nBrackets first: (13+43)=56, (30-36)=-6, then 56×-6=-336.\n</reasoning>\nFinal Answer: -336" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Find the area of a trapezoid with parallel sides 47, 23 and height 2." }, { "role": "assistant", "content": "<reasoning>\nArea = (1/2) × (a + b) × h = 0.5 × (47+23) × 2 = 70.0.\n</reasoning>\nFinal Answer: 70.0" } ]
medium
[ "geometry", "area" ]
[ { "role": "user", "content": "Two trains start towards each other from stations 543 km apart. Their speeds are 97 km/h and 120 km/h. When will they meet?" }, { "role": "assistant", "content": "<reasoning>\nCombined speed = 97+120=217 km/h. Time = 543/217 = 2.5023 hours.\n</reasoning>\nFinal Answ...
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Find the GCD (Greatest Common Divisor) of 122 and 20." }, { "role": "assistant", "content": "<reasoning>\nUsing Euclidean algorithm: GCD(122,20) = 2.\n</reasoning>\nFinal Answer: 2" } ]
medium
[ "number_theory", "gcd" ]
[ { "role": "user", "content": "Evaluate using order of operations: (46 + 2) * (33 - 32)" }, { "role": "assistant", "content": "<reasoning>\nBrackets first: (46+2)=48, (33-32)=1, then 48×1=48.\n</reasoning>\nFinal Answer: 48" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Calculate simple interest on a principal of ₹4248 at 13% per annum for 2 years." }, { "role": "assistant", "content": "<reasoning>\nSI = P × R × T / 100 = 4248 × 13 × 2 / 100 = 1104.48.\n</reasoning>\nFinal Answer: 1104.48" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Find the area of a parallelogram with base 28 and height 58." }, { "role": "assistant", "content": "<reasoning>\nArea = base × height = 28 × 58 = 1624.\n</reasoning>\nFinal Answer: 1624" } ]
easy
[ "geometry", "area" ]
[ { "role": "user", "content": "Solve for x: 15x + 25 = 760" }, { "role": "assistant", "content": "<reasoning>\nSubtract 25 from both sides: 15x = 735. Divide by 15: x = 49.\n</reasoning>\nFinal Answer: 49" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "What is 7% of 198?" }, { "role": "assistant", "content": "<reasoning>\n7% of 198 = (7/100) × 198 = 13.86.\n</reasoning>\nFinal Answer: 13.86" } ]
easy
[ "percentage", "arithmetic" ]
[ { "role": "user", "content": "Calculate simple interest on a principal of ₹24385 at 10% per annum for 6 years." }, { "role": "assistant", "content": "<reasoning>\nSI = P × R × T / 100 = 24385 × 10 × 6 / 100 = 14631.0.\n</reasoning>\nFinal Answer: 14631.0" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "A train travels at 156 km/h. How far does it travel in 2 hours and 26 minutes?" }, { "role": "assistant", "content": "<reasoning>\nTime = 2 + 26/60 = 2.4333 hours. Distance = speed × time = 156 × 2.4333 = 379.6 km.\n</reasoning>\nFinal Answer: 379.6" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Find the range of: [30, 8, 29, 37, 85, 30, 6, 33, 68, 30]" }, { "role": "assistant", "content": "<reasoning>\nRange = max - min = 85 - 6 = 79.\n</reasoning>\nFinal Answer: 79" } ]
easy
[ "statistics", "range" ]
[ { "role": "user", "content": "Simplify: 4/17 + 9/7" }, { "role": "assistant", "content": "<reasoning>\nAdd fractions: 4/17 + 9/7. Common denominator = 119. Result = 181/119.\n</reasoning>\nFinal Answer: 181/119" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "Simplify: 5/15 + 14/16" }, { "role": "assistant", "content": "<reasoning>\nAdd fractions: 5/15 + 14/16. Common denominator = 24. Result = 29/24.\n</reasoning>\nFinal Answer: 29/24" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "Simplify: 6/12 + 15/18" }, { "role": "assistant", "content": "<reasoning>\nAdd fractions: 6/12 + 15/18. Common denominator = 6. Result = 4/3.\n</reasoning>\nFinal Answer: 4/3" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "Calculate: -209 mod 203" }, { "role": "assistant", "content": "<reasoning>\n-209 mod 203: -209 = 203 × -2 + 197, so remainder = 197.\n</reasoning>\nFinal Answer: 197" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Given A = [4, 6, 10, 11, 12, 16] and B = [12, 13, 17, 19], find A difference B." }, { "role": "assistant", "content": "<reasoning>\nA - B contains elements in A but not in B. Result = [4, 6, 10, 11, 16].\n</reasoning>\nFinal Answer: [4, 6, 10, 11, 16]" } ]
medium
[ "set_theory" ]
[ { "role": "user", "content": "Evaluate using order of operations: 31 + 32 ** 2 - 2" }, { "role": "assistant", "content": "<reasoning>\nExponent first: 32²=1024, then 31+1024-2=1053.\n</reasoning>\nFinal Answer: 1053" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Find the mean of: [47, 49, 25, 32, 38, 97, 27]" }, { "role": "assistant", "content": "<reasoning>\nMean = sum/count = 315/7 = 45.0.\n</reasoning>\nFinal Answer: 45.0" } ]
easy
[ "statistics", "mean" ]
[ { "role": "user", "content": "Simplify: 16/13 + 12/12" }, { "role": "assistant", "content": "<reasoning>\nAdd fractions: 16/13 + 12/12. Common denominator = 13. Result = 29/13.\n</reasoning>\nFinal Answer: 29/13" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "Evaluate using order of operations: 10 + 23 * 21 - 33" }, { "role": "assistant", "content": "<reasoning>\nBODMAS: multiply first: 23×21=483, then 10+483-33=460.\n</reasoning>\nFinal Answer: 460" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Calculate: 957 × -390" }, { "role": "assistant", "content": "<reasoning>\nMultiply 957 by -390: 957 × -390 = -373230.\n</reasoning>\nFinal Answer: -373230" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Given A = [8, 15, 17, 18] and B = [1, 10, 11, 17], find A union B." }, { "role": "assistant", "content": "<reasoning>\nUnion includes all elements from both sets. Result = [1, 8, 10, 11, 15, 17, 18].\n</reasoning>\nFinal Answer: [1, 8, 10, 11, 15, 17, 18]" } ]
medium
[ "set_theory" ]
[ { "role": "user", "content": "Evaluate using order of operations: 38 + 38 * 8 - 41" }, { "role": "assistant", "content": "<reasoning>\nBODMAS: multiply first: 38×8=304, then 38+304-41=301.\n</reasoning>\nFinal Answer: 301" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "If the ratio of A to B is 19:37 and A = 78, find B." }, { "role": "assistant", "content": "<reasoning>\nA/B = 19/37, so B = A × (37/19) = 78 × 37/19 = 151.8947.\n</reasoning>\nFinal Answer: 151.8947" } ]
medium
[ "ratio", "proportion" ]
[ { "role": "user", "content": "Calculate simple interest on a principal of ₹27501 at 15% per annum for 8 years." }, { "role": "assistant", "content": "<reasoning>\nSI = P × R × T / 100 = 27501 × 15 × 8 / 100 = 33001.2.\n</reasoning>\nFinal Answer: 33001.2" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Find the next term in the sequence: [2, 6, 18, 54, 162]" }, { "role": "assistant", "content": "<reasoning>\nThis is a geometric sequence with first term 2 and ratio 3. Next term = 162 × 3 = 486.\n</reasoning>\nFinal Answer: 486" } ]
medium
[ "sequences", "geometric_progression" ]
[ { "role": "user", "content": "Find the mean of: [52, 38, 36, 62, 75, 74, 43, 95, 73, 17]" }, { "role": "assistant", "content": "<reasoning>\nMean = sum/count = 565/10 = 56.5.\n</reasoning>\nFinal Answer: 56.5" } ]
easy
[ "statistics", "mean" ]
[ { "role": "user", "content": "If the ratio of A to B is 3:26 and A = 69, find B." }, { "role": "assistant", "content": "<reasoning>\nA/B = 3/26, so B = A × (26/3) = 69 × 26/3 = 598.0.\n</reasoning>\nFinal Answer: 598.0" } ]
medium
[ "ratio", "proportion" ]
[ { "role": "user", "content": "Calculate: 396 ÷ -314" }, { "role": "assistant", "content": "<reasoning>\nDivide 396 by -314. 396 ÷ -314 = -2 (integer division).\n</reasoning>\nFinal Answer: -2" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "If the ratio of A to B is 1:33 and A = 78, find B." }, { "role": "assistant", "content": "<reasoning>\nA/B = 1/33, so B = A × (33/1) = 78 × 33/1 = 2574.0.\n</reasoning>\nFinal Answer: 2574.0" } ]
medium
[ "ratio", "proportion" ]
[ { "role": "user", "content": "Decrease 820 by 50%." }, { "role": "assistant", "content": "<reasoning>\nDecrease by 50%: 820 × (1 - 50/100) = 820 × 0.5 = 410.0.\n</reasoning>\nFinal Answer: 410.0" } ]
easy
[ "percentage", "arithmetic" ]
[ { "role": "user", "content": "Calculate: -177 mod 356" }, { "role": "assistant", "content": "<reasoning>\n-177 mod 356: -177 = 356 × -1 + 179, so remainder = 179.\n</reasoning>\nFinal Answer: 179" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Calculate simple interest on a principal of ₹17828 at 19% per annum for 9 years." }, { "role": "assistant", "content": "<reasoning>\nSI = P × R × T / 100 = 17828 × 19 × 9 / 100 = 30485.88.\n</reasoning>\nFinal Answer: 30485.88" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Solve for x: 26x + -26 = -234" }, { "role": "assistant", "content": "<reasoning>\nSubtract -26 from both sides: 26x = -208. Divide by 26: x = -8.\n</reasoning>\nFinal Answer: -8" } ]
easy
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Calculate: -707 × -478" }, { "role": "assistant", "content": "<reasoning>\nMultiply -707 by -478: -707 × -478 = 337946.\n</reasoning>\nFinal Answer: 337946" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Calculate: 170 + 478" }, { "role": "assistant", "content": "<reasoning>\nAdd 170 and 478: 170 + 478 = 648.\n</reasoning>\nFinal Answer: 648" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "If the ratio of A to B is 48:49 and A = 97, find B." }, { "role": "assistant", "content": "<reasoning>\nA/B = 48/49, so B = A × (49/48) = 97 × 49/48 = 99.0208.\n</reasoning>\nFinal Answer: 99.0208" } ]
medium
[ "ratio", "proportion" ]
[ { "role": "user", "content": "Find the area of a rectangle with length 18 and width 70." }, { "role": "assistant", "content": "<reasoning>\nArea = length × width = 18 × 70 = 1260.\n</reasoning>\nFinal Answer: 1260" } ]
easy
[ "geometry", "area" ]
[ { "role": "user", "content": "Calculate: -195 mod 748" }, { "role": "assistant", "content": "<reasoning>\n-195 mod 748: -195 = 748 × -1 + 553, so remainder = 553.\n</reasoning>\nFinal Answer: 553" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Solve for x: 23x + 0 = 897" }, { "role": "assistant", "content": "<reasoning>\nSubtract 0 from both sides: 23x = 897. Divide by 23: x = 39.\n</reasoning>\nFinal Answer: 39" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Simplify: 17/8 + 9/10" }, { "role": "assistant", "content": "<reasoning>\nAdd fractions: 17/8 + 9/10. Common denominator = 40. Result = 121/40.\n</reasoning>\nFinal Answer: 121/40" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "Solve for x: 6x + -40 = -316" }, { "role": "assistant", "content": "<reasoning>\nSubtract -40 from both sides: 6x = -276. Divide by 6: x = -46.\n</reasoning>\nFinal Answer: -46" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Calculate: -648 mod -828" }, { "role": "assistant", "content": "<reasoning>\n-648 mod -828: -648 = -828 × 0 + -648, so remainder = -648.\n</reasoning>\nFinal Answer: -648" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Given A = [3, 7, 14, 15, 17, 18] and B = [2, 3, 5, 15, 19], find A intersection B." }, { "role": "assistant", "content": "<reasoning>\nIntersection contains elements in both A and B. Result = [3, 15].\n</reasoning>\nFinal Answer: [3, 15]" } ]
medium
[ "set_theory" ]
[ { "role": "user", "content": "Find the median of: [83, 56, 62, 67, 96, 87, 75, 8]" }, { "role": "assistant", "content": "<reasoning>\nSorted: [8, 56, 62, 67, 75, 83, 87, 96]. Middle value(s) → median = 71.0.\n</reasoning>\nFinal Answer: 71.0" } ]
medium
[ "statistics", "median" ]
[ { "role": "user", "content": "Evaluate using order of operations: 31 * 34 + 14 * 1" }, { "role": "assistant", "content": "<reasoning>\nMultiply first: 31×34=1054 and 14×1=14, then add: 1068.\n</reasoning>\nFinal Answer: 1068" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Evaluate using order of operations: 21 + 13 * 37 - 17" }, { "role": "assistant", "content": "<reasoning>\nBODMAS: multiply first: 13×37=481, then 21+481-17=485.\n</reasoning>\nFinal Answer: 485" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Find the median of: [46, 13, 72, 72, 31, 24, 57]" }, { "role": "assistant", "content": "<reasoning>\nSorted: [13, 24, 31, 46, 57, 72, 72]. Middle value(s) → median = 46.\n</reasoning>\nFinal Answer: 46" } ]
medium
[ "statistics", "median" ]
[ { "role": "user", "content": "Find the perimeter of a rectangle with length 98 and width 100." }, { "role": "assistant", "content": "<reasoning>\nPerimeter = 2(l + w) = 2(98+100) = 2×198 = 396.\n</reasoning>\nFinal Answer: 396" } ]
easy
[ "geometry", "perimeter" ]
[ { "role": "user", "content": "Simplify: 7/12 - 18/14" }, { "role": "assistant", "content": "<reasoning>\nSubtract fractions: 7/12 - 18/14. LCD = 84. Result = -59/84.\n</reasoning>\nFinal Answer: -59/84" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "Simplify: 18/1 / 11/4" }, { "role": "assistant", "content": "<reasoning>\nDivide: (18/1) ÷ (11/4) = (18/1) × (4/11) = 72/11.\n</reasoning>\nFinal Answer: 72/11" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "Find the median of: [2, 92, 60, 62, 94]" }, { "role": "assistant", "content": "<reasoning>\nSorted: [2, 60, 62, 92, 94]. Middle value(s) → median = 62.\n</reasoning>\nFinal Answer: 62" } ]
medium
[ "statistics", "median" ]
[ { "role": "user", "content": "Solve: 4x² + (4)x + (-168) = 0" }, { "role": "assistant", "content": "<reasoning>\nUsing quadratic formula: discriminant = 4² - 4×4×-168 = 2704. √discriminant = 52. x = (-(4) ± 52) / (2×4). Solutions: x = -7 or x = 6.\n</reasoning>\nFinal Answer: x = -7 or x = 6" ...
hard
[ "algebra", "quadratic" ]
[ { "role": "user", "content": "Given A = [3, 7, 8, 17] and B = [2, 5, 7, 11, 16, 19], find A union B." }, { "role": "assistant", "content": "<reasoning>\nUnion includes all elements from both sets. Result = [2, 3, 5, 7, 8, 11, 16, 17, 19].\n</reasoning>\nFinal Answer: [2, 3, 5, 7, 8, 11, 16, 17, ...
medium
[ "set_theory" ]
[ { "role": "user", "content": "If the ratio of A to B is 18:3 and A = 86, find B." }, { "role": "assistant", "content": "<reasoning>\nA/B = 18/3, so B = A × (3/18) = 86 × 3/18 = 14.3333.\n</reasoning>\nFinal Answer: 14.3333" } ]
medium
[ "ratio", "proportion" ]
[ { "role": "user", "content": "Solve for x: 2x + 22 = 0" }, { "role": "assistant", "content": "<reasoning>\nSubtract 22 from both sides: 2x = -22. Divide by 2: x = -11.\n</reasoning>\nFinal Answer: -11" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Find the range of: [50, 4, 32, 37, 16, 3, 85, 89]" }, { "role": "assistant", "content": "<reasoning>\nRange = max - min = 89 - 3 = 86.\n</reasoning>\nFinal Answer: 86" } ]
easy
[ "statistics", "range" ]
[ { "role": "user", "content": "Two trains start towards each other from stations 512 km apart. Their speeds are 117 km/h and 95 km/h. When will they meet?" }, { "role": "assistant", "content": "<reasoning>\nCombined speed = 117+95=212 km/h. Time = 512/212 = 2.4151 hours.\n</reasoning>\nFinal Answ...
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Calculate: -157 + 13" }, { "role": "assistant", "content": "<reasoning>\nAdd -157 and 13: -157 + 13 = -144.\n</reasoning>\nFinal Answer: -144" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Calculate simple interest on a principal of ₹22408 at 1% per annum for 4 years." }, { "role": "assistant", "content": "<reasoning>\nSI = P × R × T / 100 = 22408 × 1 × 4 / 100 = 896.32.\n</reasoning>\nFinal Answer: 896.32" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Evaluate using order of operations: 13 + 47 * 15 - 7" }, { "role": "assistant", "content": "<reasoning>\nBODMAS: multiply first: 47×15=705, then 13+705-7=711.\n</reasoning>\nFinal Answer: 711" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Solve for x: 27x + 7 = -776" }, { "role": "assistant", "content": "<reasoning>\nSubtract 7 from both sides: 27x = -783. Divide by 27: x = -29.\n</reasoning>\nFinal Answer: -29" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Calculate simple interest on a principal of ₹39321 at 9% per annum for 3 years." }, { "role": "assistant", "content": "<reasoning>\nSI = P × R × T / 100 = 39321 × 9 × 3 / 100 = 10616.67.\n</reasoning>\nFinal Answer: 10616.67" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Find the prime factorization of 442." }, { "role": "assistant", "content": "<reasoning>\nDivide 442 by smallest primes repeatedly: 442 = 2 × 13 × 17.\n</reasoning>\nFinal Answer: 2 × 13 × 17" } ]
medium
[ "number_theory", "prime_factors" ]
[ { "role": "user", "content": "Evaluate using order of operations: 7 + 6 * 19 - 3" }, { "role": "assistant", "content": "<reasoning>\nBODMAS: multiply first: 6×19=114, then 7+114-3=118.\n</reasoning>\nFinal Answer: 118" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Calculate: 855 ÷ 336" }, { "role": "assistant", "content": "<reasoning>\nDivide 855 by 336. 855 ÷ 336 = 2 (integer division).\n</reasoning>\nFinal Answer: 2" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Two trains start towards each other from stations 710 km apart. Their speeds are 75 km/h and 83 km/h. When will they meet?" }, { "role": "assistant", "content": "<reasoning>\nCombined speed = 75+83=158 km/h. Time = 710/158 = 4.4937 hours.\n</reasoning>\nFinal Answer...
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "A train travels at 173 km/h. How far does it travel in 9 hours and 13 minutes?" }, { "role": "assistant", "content": "<reasoning>\nTime = 9 + 13/60 = 9.2167 hours. Distance = speed × time = 173 × 9.2167 = 1594.4833 km.\n</reasoning>\nFinal Answer: 1594.4833" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "A train travels at 87 km/h. How far does it travel in 12 hours and 7 minutes?" }, { "role": "assistant", "content": "<reasoning>\nTime = 12 + 7/60 = 12.1167 hours. Distance = speed × time = 87 × 12.1167 = 1054.15 km.\n</reasoning>\nFinal Answer: 1054.15" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Find the prime factorization of 261." }, { "role": "assistant", "content": "<reasoning>\nDivide 261 by smallest primes repeatedly: 261 = 3 × 3 × 29.\n</reasoning>\nFinal Answer: 3 × 3 × 29" } ]
medium
[ "number_theory", "prime_factors" ]
[ { "role": "user", "content": "Find the GCD (Greatest Common Divisor) of 61 and 122." }, { "role": "assistant", "content": "<reasoning>\nUsing Euclidean algorithm: GCD(61,122) = 61.\n</reasoning>\nFinal Answer: 61" } ]
medium
[ "number_theory", "gcd" ]
[ { "role": "user", "content": "Solve for x: 7x + -1 = -50" }, { "role": "assistant", "content": "<reasoning>\nSubtract -1 from both sides: 7x = -49. Divide by 7: x = -7.\n</reasoning>\nFinal Answer: -7" } ]
easy
[ "algebra", "linear_equation" ]