messages
listlengths
2
2
difficulty
stringclasses
3 values
tags
listlengths
1
3
[ { "role": "user", "content": "Two trains start towards each other from stations 549 km apart. Their speeds are 113 km/h and 95 km/h. When will they meet?" }, { "role": "assistant", "content": "<reasoning>\nCombined speed = 113+95=208 km/h. Time = 549/208 = 2.6394 hours.\n</reasoning>\nFinal Answ...
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Evaluate using order of operations: 25 * 38 + 25 * 16" }, { "role": "assistant", "content": "<reasoning>\nMultiply first: 25×38=950 and 25×16=400, then add: 1350.\n</reasoning>\nFinal Answer: 1350" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Calculate: -808 × 458" }, { "role": "assistant", "content": "<reasoning>\nMultiply -808 by 458: -808 × 458 = -370064.\n</reasoning>\nFinal Answer: -370064" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Simplify: 9/9 - 17/5" }, { "role": "assistant", "content": "<reasoning>\nSubtract fractions: 9/9 - 17/5. LCD = 5. Result = -12/5.\n</reasoning>\nFinal Answer: -12/5" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "Calculate: 142 ÷ -371" }, { "role": "assistant", "content": "<reasoning>\nDivide 142 by -371. 142 ÷ -371 = -1 (integer division).\n</reasoning>\nFinal Answer: -1" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Find the perimeter of a rectangle with length 16 and width 63." }, { "role": "assistant", "content": "<reasoning>\nPerimeter = 2(l + w) = 2(16+63) = 2×79 = 158.\n</reasoning>\nFinal Answer: 158" } ]
easy
[ "geometry", "perimeter" ]
[ { "role": "user", "content": "Increase 929 by 65%." }, { "role": "assistant", "content": "<reasoning>\nIncrease by 65%: 929 × (1 + 65/100) = 929 × 1.65 = 1532.85.\n</reasoning>\nFinal Answer: 1532.85" } ]
easy
[ "percentage", "arithmetic" ]
[ { "role": "user", "content": "Evaluate using order of operations: (20 + 8) * (17 - 17)" }, { "role": "assistant", "content": "<reasoning>\nBrackets first: (20+8)=28, (17-17)=0, then 28×0=0.\n</reasoning>\nFinal Answer: 0" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Evaluate using order of operations: (22 + 26) * (31 - 21)" }, { "role": "assistant", "content": "<reasoning>\nBrackets first: (22+26)=48, (31-21)=10, then 48×10=480.\n</reasoning>\nFinal Answer: 480" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Simplify: 1/3 + 9/16" }, { "role": "assistant", "content": "<reasoning>\nAdd fractions: 1/3 + 9/16. Common denominator = 48. Result = 43/48.\n</reasoning>\nFinal Answer: 43/48" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "Calculate: 519 mod -678" }, { "role": "assistant", "content": "<reasoning>\n519 mod -678: 519 = -678 × -1 + -159, so remainder = -159.\n</reasoning>\nFinal Answer: -159" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "18 workers can complete a job in 18 days. How many days will 13 workers take?" }, { "role": "assistant", "content": "<reasoning>\nTotal work = 18 × 18 = 324 worker-days. New time = 324 / 13 = 24.9231 days.\n</reasoning>\nFinal Answer: 24.9231" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "3 workers can complete a job in 21 days. How many days will 5 workers take?" }, { "role": "assistant", "content": "<reasoning>\nTotal work = 3 × 21 = 63 worker-days. New time = 63 / 5 = 12.6 days.\n</reasoning>\nFinal Answer: 12.6" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Find the LCM (Least Common Multiple) of 34 and 30." }, { "role": "assistant", "content": "<reasoning>\nLCM = (a×b)/GCD = (34×30)/2 = 510.\n</reasoning>\nFinal Answer: 510" } ]
medium
[ "number_theory", "lcm" ]
[ { "role": "user", "content": "What is 25% of 618?" }, { "role": "assistant", "content": "<reasoning>\n25% of 618 = (25/100) × 618 = 154.5.\n</reasoning>\nFinal Answer: 154.5" } ]
easy
[ "percentage", "arithmetic" ]
[ { "role": "user", "content": "Given A = [3, 4, 13, 14, 15] and B = [2, 8, 13, 19], find A difference B." }, { "role": "assistant", "content": "<reasoning>\nA - B contains elements in A but not in B. Result = [3, 4, 14, 15].\n</reasoning>\nFinal Answer: [3, 4, 14, 15]" } ]
medium
[ "set_theory" ]
[ { "role": "user", "content": "Find the perimeter of a triangle with sides 6, 35, and 38." }, { "role": "assistant", "content": "<reasoning>\nPerimeter = sum of all sides = 6 + 35 + 38 = 79.\n</reasoning>\nFinal Answer: 79" } ]
easy
[ "geometry", "perimeter" ]
[ { "role": "user", "content": "Evaluate using order of operations: 32 + 16 * 9 - 37" }, { "role": "assistant", "content": "<reasoning>\nBODMAS: multiply first: 16×9=144, then 32+144-37=139.\n</reasoning>\nFinal Answer: 139" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Find the GCD (Greatest Common Divisor) of 105 and 137." }, { "role": "assistant", "content": "<reasoning>\nUsing Euclidean algorithm: GCD(105,137) = 1.\n</reasoning>\nFinal Answer: 1" } ]
medium
[ "number_theory", "gcd" ]
[ { "role": "user", "content": "Calculate: 331 mod 968" }, { "role": "assistant", "content": "<reasoning>\n331 mod 968: 331 = 968 × 0 + 331, so remainder = 331.\n</reasoning>\nFinal Answer: 331" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Find the area of a triangle with base 28 and height 1." }, { "role": "assistant", "content": "<reasoning>\nArea = (1/2) × base × height = 0.5 × 28 × 1 = 14.0.\n</reasoning>\nFinal Answer: 14.0" } ]
easy
[ "geometry", "area" ]
[ { "role": "user", "content": "Find the LCM (Least Common Multiple) of 4 and 37." }, { "role": "assistant", "content": "<reasoning>\nLCM = (a×b)/GCD = (4×37)/1 = 148.\n</reasoning>\nFinal Answer: 148" } ]
medium
[ "number_theory", "lcm" ]
[ { "role": "user", "content": "Find the LCM (Least Common Multiple) of 4 and 39." }, { "role": "assistant", "content": "<reasoning>\nLCM = (a×b)/GCD = (4×39)/1 = 156.\n</reasoning>\nFinal Answer: 156" } ]
medium
[ "number_theory", "lcm" ]
[ { "role": "user", "content": "Solve for x: 27x + 48 = -411" }, { "role": "assistant", "content": "<reasoning>\nSubtract 48 from both sides: 27x = -459. Divide by 27: x = -17.\n</reasoning>\nFinal Answer: -17" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Calculate: -135 ÷ 475" }, { "role": "assistant", "content": "<reasoning>\nDivide -135 by 475. -135 ÷ 475 = -1 (integer division).\n</reasoning>\nFinal Answer: -1" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Evaluate using order of operations: 35 + 6 ** 2 - 38" }, { "role": "assistant", "content": "<reasoning>\nExponent first: 6²=36, then 35+36-38=33.\n</reasoning>\nFinal Answer: 33" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Evaluate using order of operations: 32 + 24 * 34 - 31" }, { "role": "assistant", "content": "<reasoning>\nBODMAS: multiply first: 24×34=816, then 32+816-31=817.\n</reasoning>\nFinal Answer: 817" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Find the area of a parallelogram with base 15 and height 35." }, { "role": "assistant", "content": "<reasoning>\nArea = base × height = 15 × 35 = 525.\n</reasoning>\nFinal Answer: 525" } ]
easy
[ "geometry", "area" ]
[ { "role": "user", "content": "Solve: 5x² + (50)x + (105) = 0" }, { "role": "assistant", "content": "<reasoning>\nUsing quadratic formula: discriminant = 50² - 4×5×105 = 400. √discriminant = 20. x = (-(50) ± 20) / (2×5). Solutions: x = -3 or x = -7.\n</reasoning>\nFinal Answer: x = -3 or x = -7" ...
hard
[ "algebra", "quadratic" ]
[ { "role": "user", "content": "Find the area of a rectangle with length 32 and width 35." }, { "role": "assistant", "content": "<reasoning>\nArea = length × width = 32 × 35 = 1120.\n</reasoning>\nFinal Answer: 1120" } ]
easy
[ "geometry", "area" ]
[ { "role": "user", "content": "What is 65% of 637?" }, { "role": "assistant", "content": "<reasoning>\n65% of 637 = (65/100) × 637 = 414.05.\n</reasoning>\nFinal Answer: 414.05" } ]
easy
[ "percentage", "arithmetic" ]
[ { "role": "user", "content": "Solve for x: 22x + 8 = -14" }, { "role": "assistant", "content": "<reasoning>\nSubtract 8 from both sides: 22x = -22. Divide by 22: x = -1.\n</reasoning>\nFinal Answer: -1" } ]
easy
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Find the area of a rectangle with length 100 and width 92." }, { "role": "assistant", "content": "<reasoning>\nArea = length × width = 100 × 92 = 9200.\n</reasoning>\nFinal Answer: 9200" } ]
easy
[ "geometry", "area" ]
[ { "role": "user", "content": "Find the area of a trapezoid with parallel sides 12, 17 and height 11." }, { "role": "assistant", "content": "<reasoning>\nArea = (1/2) × (a + b) × h = 0.5 × (12+17) × 11 = 159.5.\n</reasoning>\nFinal Answer: 159.5" } ]
medium
[ "geometry", "area" ]
[ { "role": "user", "content": "A train travels at 132 km/h. How far does it travel in 1 hours and 53 minutes?" }, { "role": "assistant", "content": "<reasoning>\nTime = 1 + 53/60 = 1.8833 hours. Distance = speed × time = 132 × 1.8833 = 248.6 km.\n</reasoning>\nFinal Answer: 248.6" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Evaluate using order of operations: 49 + 18 * 11 - 33" }, { "role": "assistant", "content": "<reasoning>\nBODMAS: multiply first: 18×11=198, then 49+198-33=214.\n</reasoning>\nFinal Answer: 214" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Evaluate using order of operations: 13 + 37 ** 2 - 13" }, { "role": "assistant", "content": "<reasoning>\nExponent first: 37²=1369, then 13+1369-13=1369.\n</reasoning>\nFinal Answer: 1369" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Calculate: 159 × -339" }, { "role": "assistant", "content": "<reasoning>\nMultiply 159 by -339: 159 × -339 = -53901.\n</reasoning>\nFinal Answer: -53901" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Calculate simple interest on a principal of ₹27956 at 5% per annum for 6 years." }, { "role": "assistant", "content": "<reasoning>\nSI = P × R × T / 100 = 27956 × 5 × 6 / 100 = 8386.8.\n</reasoning>\nFinal Answer: 8386.8" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Simplify: 17/8 * 10/6" }, { "role": "assistant", "content": "<reasoning>\nMultiply: (17/8) × (10/6) = (170/48) = 85/24 after simplification.\n</reasoning>\nFinal Answer: 85/24" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "Evaluate using order of operations: 3 + 16 ** 2 - 41" }, { "role": "assistant", "content": "<reasoning>\nExponent first: 16²=256, then 3+256-41=218.\n</reasoning>\nFinal Answer: 218" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Find the LCM (Least Common Multiple) of 9 and 14." }, { "role": "assistant", "content": "<reasoning>\nLCM = (a×b)/GCD = (9×14)/1 = 126.\n</reasoning>\nFinal Answer: 126" } ]
medium
[ "number_theory", "lcm" ]
[ { "role": "user", "content": "Given A = [3, 6, 8, 9, 10, 13] and B = [2, 5, 6, 8, 11, 15, 17], find A symmetric diff B." }, { "role": "assistant", "content": "<reasoning>\nSymmetric difference contains elements in exactly one of the sets. Result = [2, 3, 5, 9, 10, 11, 13, 15, 17].\n</reasoning>\...
medium
[ "set_theory" ]
[ { "role": "user", "content": "Calculate: 189 ÷ -374" }, { "role": "assistant", "content": "<reasoning>\nDivide 189 by -374. 189 ÷ -374 = -1 (integer division).\n</reasoning>\nFinal Answer: -1" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Calculate: -57 - 469" }, { "role": "assistant", "content": "<reasoning>\nSubtract 469 from -57: -57 - 469 = -526.\n</reasoning>\nFinal Answer: -526" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Calculate: 132 + 136" }, { "role": "assistant", "content": "<reasoning>\nAdd 132 and 136: 132 + 136 = 268.\n</reasoning>\nFinal Answer: 268" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "501 is what percentage of 579?" }, { "role": "assistant", "content": "<reasoning>\n(501/579) × 100 = 86.5285%.\n</reasoning>\nFinal Answer: 86.5285%" } ]
medium
[ "percentage", "ratio" ]
[ { "role": "user", "content": "Find the mean of: [82, 24, 16, 21, 62, 9, 45, 88]" }, { "role": "assistant", "content": "<reasoning>\nMean = sum/count = 347/8 = 43.375.\n</reasoning>\nFinal Answer: 43.375" } ]
easy
[ "statistics", "mean" ]
[ { "role": "user", "content": "Decrease 362 by 12%." }, { "role": "assistant", "content": "<reasoning>\nDecrease by 12%: 362 × (1 - 12/100) = 362 × 0.88 = 318.56.\n</reasoning>\nFinal Answer: 318.56" } ]
easy
[ "percentage", "arithmetic" ]
[ { "role": "user", "content": "Find the median of: [2, 12, 51, 30, 27, 5]" }, { "role": "assistant", "content": "<reasoning>\nSorted: [2, 5, 12, 27, 30, 51]. Middle value(s) → median = 19.5.\n</reasoning>\nFinal Answer: 19.5" } ]
medium
[ "statistics", "median" ]
[ { "role": "user", "content": "Find the area of a rectangle with length 75 and width 66." }, { "role": "assistant", "content": "<reasoning>\nArea = length × width = 75 × 66 = 4950.\n</reasoning>\nFinal Answer: 4950" } ]
easy
[ "geometry", "area" ]
[ { "role": "user", "content": "In an arithmetic progression with first term 8 and common difference 12, find the 17th term." }, { "role": "assistant", "content": "<reasoning>\nnth term = a + (n-1)d = 8 + (17-1)×12 = 8 + 192 = 200.\n</reasoning>\nFinal Answer: 200" } ]
medium
[ "sequences", "arithmetic_progression" ]
[ { "role": "user", "content": "Calculate: -365 mod -875" }, { "role": "assistant", "content": "<reasoning>\n-365 mod -875: -365 = -875 × 0 + -365, so remainder = -365.\n</reasoning>\nFinal Answer: -365" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Solve for x: 24x + -27 = -243" }, { "role": "assistant", "content": "<reasoning>\nSubtract -27 from both sides: 24x = -216. Divide by 24: x = -9.\n</reasoning>\nFinal Answer: -9" } ]
easy
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Find the GCD (Greatest Common Divisor) of 79 and 101." }, { "role": "assistant", "content": "<reasoning>\nUsing Euclidean algorithm: GCD(79,101) = 1.\n</reasoning>\nFinal Answer: 1" } ]
medium
[ "number_theory", "gcd" ]
[ { "role": "user", "content": "Find the area of a triangle with base 67 and height 13." }, { "role": "assistant", "content": "<reasoning>\nArea = (1/2) × base × height = 0.5 × 67 × 13 = 435.5.\n</reasoning>\nFinal Answer: 435.5" } ]
easy
[ "geometry", "area" ]
[ { "role": "user", "content": "Calculate: 107 ÷ 258" }, { "role": "assistant", "content": "<reasoning>\nDivide 107 by 258. 107 ÷ 258 = 0 (integer division).\n</reasoning>\nFinal Answer: 0" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Simplify: 11/12 * 6/8" }, { "role": "assistant", "content": "<reasoning>\nMultiply: (11/12) × (6/8) = (66/96) = 11/16 after simplification.\n</reasoning>\nFinal Answer: 11/16" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "Calculate: 754 mod -567" }, { "role": "assistant", "content": "<reasoning>\n754 mod -567: 754 = -567 × -2 + -380, so remainder = -380.\n</reasoning>\nFinal Answer: -380" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "If the ratio of A to B is 35:2 and A = 50, find B." }, { "role": "assistant", "content": "<reasoning>\nA/B = 35/2, so B = A × (2/35) = 50 × 2/35 = 2.8571.\n</reasoning>\nFinal Answer: 2.8571" } ]
medium
[ "ratio", "proportion" ]
[ { "role": "user", "content": "A train travels at 198 km/h. How far does it travel in 1 hours and 12 minutes?" }, { "role": "assistant", "content": "<reasoning>\nTime = 1 + 12/60 = 1.2000 hours. Distance = speed × time = 198 × 1.2000 = 237.6 km.\n</reasoning>\nFinal Answer: 237.6" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "In an arithmetic progression with first term 26 and common difference 15, find the 38th term." }, { "role": "assistant", "content": "<reasoning>\nnth term = a + (n-1)d = 26 + (38-1)×15 = 26 + 555 = 581.\n</reasoning>\nFinal Answer: 581" } ]
medium
[ "sequences", "arithmetic_progression" ]
[ { "role": "user", "content": "Solve for x: 23x + 35 = -103" }, { "role": "assistant", "content": "<reasoning>\nSubtract 35 from both sides: 23x = -138. Divide by 23: x = -6.\n</reasoning>\nFinal Answer: -6" } ]
easy
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Find the mean of: [58, 64, 73, 5, 14, 28, 15]" }, { "role": "assistant", "content": "<reasoning>\nMean = sum/count = 257/7 = 36.7143.\n</reasoning>\nFinal Answer: 36.7143" } ]
easy
[ "statistics", "mean" ]
[ { "role": "user", "content": "Simplify: 19/17 + 9/10" }, { "role": "assistant", "content": "<reasoning>\nAdd fractions: 19/17 + 9/10. Common denominator = 170. Result = 343/170.\n</reasoning>\nFinal Answer: 343/170" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "A train travels at 177 km/h. How far does it travel in 2 hours and 50 minutes?" }, { "role": "assistant", "content": "<reasoning>\nTime = 2 + 50/60 = 2.8333 hours. Distance = speed × time = 177 × 2.8333 = 501.5 km.\n</reasoning>\nFinal Answer: 501.5" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Given A = [2, 9, 11, 13, 15, 16, 17, 18] and B = [1, 3, 13], find A difference B." }, { "role": "assistant", "content": "<reasoning>\nA - B contains elements in A but not in B. Result = [2, 9, 11, 15, 16, 17, 18].\n</reasoning>\nFinal Answer: [2, 9, 11, 15, 16, 17, ...
medium
[ "set_theory" ]
[ { "role": "user", "content": "Calculate simple interest on a principal of ₹29970 at 2% per annum for 7 years." }, { "role": "assistant", "content": "<reasoning>\nSI = P × R × T / 100 = 29970 × 2 × 7 / 100 = 4195.8.\n</reasoning>\nFinal Answer: 4195.8" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Find the GCD (Greatest Common Divisor) of 194 and 152." }, { "role": "assistant", "content": "<reasoning>\nUsing Euclidean algorithm: GCD(194,152) = 2.\n</reasoning>\nFinal Answer: 2" } ]
medium
[ "number_theory", "gcd" ]
[ { "role": "user", "content": "Two trains start towards each other from stations 185 km apart. Their speeds are 103 km/h and 44 km/h. When will they meet?" }, { "role": "assistant", "content": "<reasoning>\nCombined speed = 103+44=147 km/h. Time = 185/147 = 1.2585 hours.\n</reasoning>\nFinal Answ...
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Simplify: 12/13 * 20/4" }, { "role": "assistant", "content": "<reasoning>\nMultiply: (12/13) × (20/4) = (240/52) = 60/13 after simplification.\n</reasoning>\nFinal Answer: 60/13" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "Evaluate using order of operations: 3 + 2 ** 2 - 32" }, { "role": "assistant", "content": "<reasoning>\nExponent first: 2²=4, then 3+4-32=-25.\n</reasoning>\nFinal Answer: -25" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Find the prime factorization of 301." }, { "role": "assistant", "content": "<reasoning>\nDivide 301 by smallest primes repeatedly: 301 = 7 × 43.\n</reasoning>\nFinal Answer: 7 × 43" } ]
medium
[ "number_theory", "prime_factors" ]
[ { "role": "user", "content": "Evaluate using order of operations: (33 + 16) * (21 - 36)" }, { "role": "assistant", "content": "<reasoning>\nBrackets first: (33+16)=49, (21-36)=-15, then 49×-15=-735.\n</reasoning>\nFinal Answer: -735" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Simplify: 3/11 * 4/20" }, { "role": "assistant", "content": "<reasoning>\nMultiply: (3/11) × (4/20) = (12/220) = 3/55 after simplification.\n</reasoning>\nFinal Answer: 3/55" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "If the ratio of A to B is 49:2 and A = 31, find B." }, { "role": "assistant", "content": "<reasoning>\nA/B = 49/2, so B = A × (2/49) = 31 × 2/49 = 1.2653.\n</reasoning>\nFinal Answer: 1.2653" } ]
medium
[ "ratio", "proportion" ]
[ { "role": "user", "content": "Find the area of a parallelogram with base 44 and height 94." }, { "role": "assistant", "content": "<reasoning>\nArea = base × height = 44 × 94 = 4136.\n</reasoning>\nFinal Answer: 4136" } ]
easy
[ "geometry", "area" ]
[ { "role": "user", "content": "Evaluate using order of operations: 30 + 33 ** 2 - 28" }, { "role": "assistant", "content": "<reasoning>\nExponent first: 33²=1089, then 30+1089-28=1091.\n</reasoning>\nFinal Answer: 1091" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Find the area of a trapezoid with parallel sides 15, 17 and height 24." }, { "role": "assistant", "content": "<reasoning>\nArea = (1/2) × (a + b) × h = 0.5 × (15+17) × 24 = 384.0.\n</reasoning>\nFinal Answer: 384.0" } ]
medium
[ "geometry", "area" ]
[ { "role": "user", "content": "Calculate: -967 - 722" }, { "role": "assistant", "content": "<reasoning>\nSubtract 722 from -967: -967 - 722 = -1689.\n</reasoning>\nFinal Answer: -1689" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Find the area of a parallelogram with base 30 and height 31." }, { "role": "assistant", "content": "<reasoning>\nArea = base × height = 30 × 31 = 930.\n</reasoning>\nFinal Answer: 930" } ]
easy
[ "geometry", "area" ]
[ { "role": "user", "content": "Calculate simple interest on a principal of ₹43918 at 1% per annum for 2 years." }, { "role": "assistant", "content": "<reasoning>\nSI = P × R × T / 100 = 43918 × 1 × 2 / 100 = 878.36.\n</reasoning>\nFinal Answer: 878.36" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "If the ratio of A to B is 16:41 and A = 90, find B." }, { "role": "assistant", "content": "<reasoning>\nA/B = 16/41, so B = A × (41/16) = 90 × 41/16 = 230.625.\n</reasoning>\nFinal Answer: 230.625" } ]
medium
[ "ratio", "proportion" ]
[ { "role": "user", "content": "Find the LCM (Least Common Multiple) of 5 and 36." }, { "role": "assistant", "content": "<reasoning>\nLCM = (a×b)/GCD = (5×36)/1 = 180.\n</reasoning>\nFinal Answer: 180" } ]
medium
[ "number_theory", "lcm" ]
[ { "role": "user", "content": "Find the GCD (Greatest Common Divisor) of 145 and 16." }, { "role": "assistant", "content": "<reasoning>\nUsing Euclidean algorithm: GCD(145,16) = 1.\n</reasoning>\nFinal Answer: 1" } ]
medium
[ "number_theory", "gcd" ]
[ { "role": "user", "content": "Solve: 3x² + (9)x + (6) = 0" }, { "role": "assistant", "content": "<reasoning>\nUsing quadratic formula: discriminant = 9² - 4×3×6 = 9. √discriminant = 3. x = (-(9) ± 3) / (2×3). Solutions: x = -2 or x = -1.\n</reasoning>\nFinal Answer: x = -2 or x = -1" } ]
hard
[ "algebra", "quadratic" ]
[ { "role": "user", "content": "Simplify: 7/4 / 15/12" }, { "role": "assistant", "content": "<reasoning>\nDivide: (7/4) ÷ (15/12) = (7/4) × (12/15) = 7/5.\n</reasoning>\nFinal Answer: 7/5" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "Calculate: 748 - -163" }, { "role": "assistant", "content": "<reasoning>\nSubtract -163 from 748: 748 - -163 = 911.\n</reasoning>\nFinal Answer: 911" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Find the perimeter of a rectangle with length 74 and width 19." }, { "role": "assistant", "content": "<reasoning>\nPerimeter = 2(l + w) = 2(74+19) = 2×93 = 186.\n</reasoning>\nFinal Answer: 186" } ]
easy
[ "geometry", "perimeter" ]
[ { "role": "user", "content": "Ravi has 199 apples and buys 198 more. How many apples does he have now?" }, { "role": "assistant", "content": "<reasoning>\nTotal = 199 + 198 = 397.\n</reasoning>\nFinal Answer: 397" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Ravi has 31 apples and buys 125 more. How many apples does he have now?" }, { "role": "assistant", "content": "<reasoning>\nTotal = 31 + 125 = 156.\n</reasoning>\nFinal Answer: 156" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Solve for x: 8x + -7 = 377" }, { "role": "assistant", "content": "<reasoning>\nSubtract -7 from both sides: 8x = 384. Divide by 8: x = 48.\n</reasoning>\nFinal Answer: 48" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Find the mean of: [95, 29, 20, 84, 4, 7]" }, { "role": "assistant", "content": "<reasoning>\nMean = sum/count = 239/6 = 39.8333.\n</reasoning>\nFinal Answer: 39.8333" } ]
easy
[ "statistics", "mean" ]
[ { "role": "user", "content": "Find the area of a trapezoid with parallel sides 7, 33 and height 45." }, { "role": "assistant", "content": "<reasoning>\nArea = (1/2) × (a + b) × h = 0.5 × (7+33) × 45 = 900.0.\n</reasoning>\nFinal Answer: 900.0" } ]
medium
[ "geometry", "area" ]
[ { "role": "user", "content": "Simplify: 20/15 - 13/19" }, { "role": "assistant", "content": "<reasoning>\nSubtract fractions: 20/15 - 13/19. LCD = 57. Result = 37/57.\n</reasoning>\nFinal Answer: 37/57" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "Evaluate using order of operations: (30 + 39) * (49 - 19)" }, { "role": "assistant", "content": "<reasoning>\nBrackets first: (30+39)=69, (49-19)=30, then 69×30=2070.\n</reasoning>\nFinal Answer: 2070" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Increase 950 by 30%." }, { "role": "assistant", "content": "<reasoning>\nIncrease by 30%: 950 × (1 + 30/100) = 950 × 1.3 = 1235.0.\n</reasoning>\nFinal Answer: 1235.0" } ]
easy
[ "percentage", "arithmetic" ]
[ { "role": "user", "content": "Find the LCM (Least Common Multiple) of 31 and 37." }, { "role": "assistant", "content": "<reasoning>\nLCM = (a×b)/GCD = (31×37)/1 = 1147.\n</reasoning>\nFinal Answer: 1147" } ]
medium
[ "number_theory", "lcm" ]
[ { "role": "user", "content": "29 is what percentage of 56?" }, { "role": "assistant", "content": "<reasoning>\n(29/56) × 100 = 51.7857%.\n</reasoning>\nFinal Answer: 51.7857%" } ]
medium
[ "percentage", "ratio" ]
[ { "role": "user", "content": "In an arithmetic progression with first term 30 and common difference 1, find the 23th term." }, { "role": "assistant", "content": "<reasoning>\nnth term = a + (n-1)d = 30 + (23-1)×1 = 30 + 22 = 52.\n</reasoning>\nFinal Answer: 52" } ]
medium
[ "sequences", "arithmetic_progression" ]