messages
listlengths
2
2
difficulty
stringclasses
3 values
tags
listlengths
1
3
[ { "role": "user", "content": "Find the perimeter of a rectangle with length 89 and width 62." }, { "role": "assistant", "content": "<reasoning>\nPerimeter = 2(l + w) = 2(89+62) = 2×151 = 302.\n</reasoning>\nFinal Answer: 302" } ]
easy
[ "geometry", "perimeter" ]
[ { "role": "user", "content": "Evaluate using order of operations: 46 * 11 + 7 * 13" }, { "role": "assistant", "content": "<reasoning>\nMultiply first: 46×11=506 and 7×13=91, then add: 597.\n</reasoning>\nFinal Answer: 597" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "If the ratio of A to B is 27:1 and A = 85, find B." }, { "role": "assistant", "content": "<reasoning>\nA/B = 27/1, so B = A × (1/27) = 85 × 1/27 = 3.1481.\n</reasoning>\nFinal Answer: 3.1481" } ]
medium
[ "ratio", "proportion" ]
[ { "role": "user", "content": "If the ratio of A to B is 41:15 and A = 77, find B." }, { "role": "assistant", "content": "<reasoning>\nA/B = 41/15, so B = A × (15/41) = 77 × 15/41 = 28.1707.\n</reasoning>\nFinal Answer: 28.1707" } ]
medium
[ "ratio", "proportion" ]
[ { "role": "user", "content": "Ravi has 74 apples and buys 10 more. How many apples does he have now?" }, { "role": "assistant", "content": "<reasoning>\nTotal = 74 + 10 = 84.\n</reasoning>\nFinal Answer: 84" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Solve for x: 14x + 20 = -316" }, { "role": "assistant", "content": "<reasoning>\nSubtract 20 from both sides: 14x = -336. Divide by 14: x = -24.\n</reasoning>\nFinal Answer: -24" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "69 is what percentage of 105?" }, { "role": "assistant", "content": "<reasoning>\n(69/105) × 100 = 65.7143%.\n</reasoning>\nFinal Answer: 65.7143%" } ]
medium
[ "percentage", "ratio" ]
[ { "role": "user", "content": "Decrease 574 by 100%." }, { "role": "assistant", "content": "<reasoning>\nDecrease by 100%: 574 × (1 - 100/100) = 574 × 0.0 = 0.0.\n</reasoning>\nFinal Answer: 0.0" } ]
easy
[ "percentage", "arithmetic" ]
[ { "role": "user", "content": "Calculate: 158 ÷ -459" }, { "role": "assistant", "content": "<reasoning>\nDivide 158 by -459. 158 ÷ -459 = -1 (integer division).\n</reasoning>\nFinal Answer: -1" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Find the perimeter of a triangle with sides 24, 28, and 32." }, { "role": "assistant", "content": "<reasoning>\nPerimeter = sum of all sides = 24 + 28 + 32 = 84.\n</reasoning>\nFinal Answer: 84" } ]
easy
[ "geometry", "perimeter" ]
[ { "role": "user", "content": "In an arithmetic progression with first term 49 and common difference 18, find the 28th term." }, { "role": "assistant", "content": "<reasoning>\nnth term = a + (n-1)d = 49 + (28-1)×18 = 49 + 486 = 535.\n</reasoning>\nFinal Answer: 535" } ]
medium
[ "sequences", "arithmetic_progression" ]
[ { "role": "user", "content": "Find the median of: [73, 35, 16, 36, 70, 10, 44, 25]" }, { "role": "assistant", "content": "<reasoning>\nSorted: [10, 16, 25, 35, 36, 44, 70, 73]. Middle value(s) → median = 35.5.\n</reasoning>\nFinal Answer: 35.5" } ]
medium
[ "statistics", "median" ]
[ { "role": "user", "content": "Increase 212 by 35%." }, { "role": "assistant", "content": "<reasoning>\nIncrease by 35%: 212 × (1 + 35/100) = 212 × 1.35 = 286.2.\n</reasoning>\nFinal Answer: 286.2" } ]
easy
[ "percentage", "arithmetic" ]
[ { "role": "user", "content": "Decrease 500 by 30%." }, { "role": "assistant", "content": "<reasoning>\nDecrease by 30%: 500 × (1 - 30/100) = 500 × 0.7 = 350.0.\n</reasoning>\nFinal Answer: 350.0" } ]
easy
[ "percentage", "arithmetic" ]
[ { "role": "user", "content": "Find the LCM (Least Common Multiple) of 36 and 35." }, { "role": "assistant", "content": "<reasoning>\nLCM = (a×b)/GCD = (36×35)/1 = 1260.\n</reasoning>\nFinal Answer: 1260" } ]
medium
[ "number_theory", "lcm" ]
[ { "role": "user", "content": "Calculate: -846 - 12" }, { "role": "assistant", "content": "<reasoning>\nSubtract 12 from -846: -846 - 12 = -858.\n</reasoning>\nFinal Answer: -858" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Evaluate using order of operations: 27 + 31 ** 2 - 44" }, { "role": "assistant", "content": "<reasoning>\nExponent first: 31²=961, then 27+961-44=944.\n</reasoning>\nFinal Answer: 944" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Simplify: 8/20 - 18/11" }, { "role": "assistant", "content": "<reasoning>\nSubtract fractions: 8/20 - 18/11. LCD = 55. Result = -68/55.\n</reasoning>\nFinal Answer: -68/55" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "Calculate: -553 ÷ -296" }, { "role": "assistant", "content": "<reasoning>\nDivide -553 by -296. -553 ÷ -296 = 1 (integer division).\n</reasoning>\nFinal Answer: 1" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Solve for x: 17x + -13 = 327" }, { "role": "assistant", "content": "<reasoning>\nSubtract -13 from both sides: 17x = 340. Divide by 17: x = 20.\n</reasoning>\nFinal Answer: 20" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Find the range of: [62, 68, 14, 5, 70]" }, { "role": "assistant", "content": "<reasoning>\nRange = max - min = 70 - 5 = 65.\n</reasoning>\nFinal Answer: 65" } ]
easy
[ "statistics", "range" ]
[ { "role": "user", "content": "Evaluate using order of operations: 35 + 31 ** 2 - 3" }, { "role": "assistant", "content": "<reasoning>\nExponent first: 31²=961, then 35+961-3=993.\n</reasoning>\nFinal Answer: 993" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Evaluate using order of operations: 11 + 48 ** 2 - 37" }, { "role": "assistant", "content": "<reasoning>\nExponent first: 48²=2304, then 11+2304-37=2278.\n</reasoning>\nFinal Answer: 2278" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Is 20 a prime number? Answer Yes or No." }, { "role": "assistant", "content": "<reasoning>\n20 = 2 × 10, so it is not prime.\n</reasoning>\nFinal Answer: No" } ]
easy
[ "number_theory", "prime" ]
[ { "role": "user", "content": "Solve: 3x² + (39)x + (126) = 0" }, { "role": "assistant", "content": "<reasoning>\nUsing quadratic formula: discriminant = 39² - 4×3×126 = 9. √discriminant = 3. x = (-(39) ± 3) / (2×3). Solutions: x = -6 or x = -7.\n</reasoning>\nFinal Answer: x = -6 or x = -7" } ...
hard
[ "algebra", "quadratic" ]
[ { "role": "user", "content": "Calculate: -796 ÷ 457" }, { "role": "assistant", "content": "<reasoning>\nDivide -796 by 457. -796 ÷ 457 = -2 (integer division).\n</reasoning>\nFinal Answer: -2" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Find the perimeter of a rectangle with length 51 and width 48." }, { "role": "assistant", "content": "<reasoning>\nPerimeter = 2(l + w) = 2(51+48) = 2×99 = 198.\n</reasoning>\nFinal Answer: 198" } ]
easy
[ "geometry", "perimeter" ]
[ { "role": "user", "content": "A train travels at 110 km/h. How far does it travel in 5 hours and 6 minutes?" }, { "role": "assistant", "content": "<reasoning>\nTime = 5 + 6/60 = 5.1000 hours. Distance = speed × time = 110 × 5.1000 = 561.0 km.\n</reasoning>\nFinal Answer: 561.0" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Solve for x: 8x + -9 = 55" }, { "role": "assistant", "content": "<reasoning>\nSubtract -9 from both sides: 8x = 64. Divide by 8: x = 8.\n</reasoning>\nFinal Answer: 8" } ]
easy
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Solve for x: 21x + -38 = -899" }, { "role": "assistant", "content": "<reasoning>\nSubtract -38 from both sides: 21x = -861. Divide by 21: x = -41.\n</reasoning>\nFinal Answer: -41" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Calculate: -195 × 865" }, { "role": "assistant", "content": "<reasoning>\nMultiply -195 by 865: -195 × 865 = -168675.\n</reasoning>\nFinal Answer: -168675" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Simplify: 4/19 + 15/15" }, { "role": "assistant", "content": "<reasoning>\nAdd fractions: 4/19 + 15/15. Common denominator = 19. Result = 23/19.\n</reasoning>\nFinal Answer: 23/19" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "Calculate: 633 mod 965" }, { "role": "assistant", "content": "<reasoning>\n633 mod 965: 633 = 965 × 0 + 633, so remainder = 633.\n</reasoning>\nFinal Answer: 633" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Calculate: -525 ÷ 370" }, { "role": "assistant", "content": "<reasoning>\nDivide -525 by 370. -525 ÷ 370 = -2 (integer division).\n</reasoning>\nFinal Answer: -2" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Increase 154 by 10%." }, { "role": "assistant", "content": "<reasoning>\nIncrease by 10%: 154 × (1 + 10/100) = 154 × 1.1 = 169.4.\n</reasoning>\nFinal Answer: 169.4" } ]
easy
[ "percentage", "arithmetic" ]
[ { "role": "user", "content": "Calculate: -97 - 908" }, { "role": "assistant", "content": "<reasoning>\nSubtract 908 from -97: -97 - 908 = -1005.\n</reasoning>\nFinal Answer: -1005" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "A train travels at 79 km/h. How far does it travel in 5 hours and 45 minutes?" }, { "role": "assistant", "content": "<reasoning>\nTime = 5 + 45/60 = 5.7500 hours. Distance = speed × time = 79 × 5.7500 = 454.25 km.\n</reasoning>\nFinal Answer: 454.25" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Find the mean of: [69, 93, 52, 59, 20, 47, 61]" }, { "role": "assistant", "content": "<reasoning>\nMean = sum/count = 401/7 = 57.2857.\n</reasoning>\nFinal Answer: 57.2857" } ]
easy
[ "statistics", "mean" ]
[ { "role": "user", "content": "Calculate: -139 × -761" }, { "role": "assistant", "content": "<reasoning>\nMultiply -139 by -761: -139 × -761 = 105779.\n</reasoning>\nFinal Answer: 105779" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Simplify: 12/16 / 17/2" }, { "role": "assistant", "content": "<reasoning>\nDivide: (12/16) ÷ (17/2) = (12/16) × (2/17) = 3/34.\n</reasoning>\nFinal Answer: 3/34" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "List all positive factors of 13." }, { "role": "assistant", "content": "<reasoning>\nCheck each number from 1 to 13: factors are [1, 13].\n</reasoning>\nFinal Answer: [1, 13]" } ]
easy
[ "number_theory", "factors" ]
[ { "role": "user", "content": "Solve for x: 17x + 42 = 144" }, { "role": "assistant", "content": "<reasoning>\nSubtract 42 from both sides: 17x = 102. Divide by 17: x = 6.\n</reasoning>\nFinal Answer: 6" } ]
easy
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Evaluate using order of operations: (37 + 48) * (46 - 13)" }, { "role": "assistant", "content": "<reasoning>\nBrackets first: (37+48)=85, (46-13)=33, then 85×33=2805.\n</reasoning>\nFinal Answer: 2805" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Find the range of: [11, 21, 51, 59, 74]" }, { "role": "assistant", "content": "<reasoning>\nRange = max - min = 74 - 11 = 63.\n</reasoning>\nFinal Answer: 63" } ]
easy
[ "statistics", "range" ]
[ { "role": "user", "content": "Calculate: 624 mod 741" }, { "role": "assistant", "content": "<reasoning>\n624 mod 741: 624 = 741 × 0 + 624, so remainder = 624.\n</reasoning>\nFinal Answer: 624" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Given A = [2, 3, 5, 6, 8, 10, 11, 19] and B = [6, 9, 10, 11, 14, 15], find A intersection B." }, { "role": "assistant", "content": "<reasoning>\nIntersection contains elements in both A and B. Result = [6, 10, 11].\n</reasoning>\nFinal Answer: [6, 10, 11]" } ]
medium
[ "set_theory" ]
[ { "role": "user", "content": "Find the area of a rectangle with length 58 and width 14." }, { "role": "assistant", "content": "<reasoning>\nArea = length × width = 58 × 14 = 812.\n</reasoning>\nFinal Answer: 812" } ]
easy
[ "geometry", "area" ]
[ { "role": "user", "content": "Ravi has 47 apples and buys 109 more. How many apples does he have now?" }, { "role": "assistant", "content": "<reasoning>\nTotal = 47 + 109 = 156.\n</reasoning>\nFinal Answer: 156" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Decrease 310 by 75%." }, { "role": "assistant", "content": "<reasoning>\nDecrease by 75%: 310 × (1 - 75/100) = 310 × 0.25 = 77.5.\n</reasoning>\nFinal Answer: 77.5" } ]
easy
[ "percentage", "arithmetic" ]
[ { "role": "user", "content": "What is 3% of 493?" }, { "role": "assistant", "content": "<reasoning>\n3% of 493 = (3/100) × 493 = 14.79.\n</reasoning>\nFinal Answer: 14.79" } ]
easy
[ "percentage", "arithmetic" ]
[ { "role": "user", "content": "Calculate: 31 + -339" }, { "role": "assistant", "content": "<reasoning>\nAdd 31 and -339: 31 + -339 = -308.\n</reasoning>\nFinal Answer: -308" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Solve for x: 17x + 1 = 120" }, { "role": "assistant", "content": "<reasoning>\nSubtract 1 from both sides: 17x = 119. Divide by 17: x = 7.\n</reasoning>\nFinal Answer: 7" } ]
easy
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Decrease 597 by 90%." }, { "role": "assistant", "content": "<reasoning>\nDecrease by 90%: 597 × (1 - 90/100) = 597 × 0.09999999999999998 = 59.7.\n</reasoning>\nFinal Answer: 59.7" } ]
easy
[ "percentage", "arithmetic" ]
[ { "role": "user", "content": "Given A = [1, 8, 9, 13, 14, 17, 18, 19] and B = [4, 9, 12], find A symmetric diff B." }, { "role": "assistant", "content": "<reasoning>\nSymmetric difference contains elements in exactly one of the sets. Result = [1, 4, 8, 12, 13, 14, 17, 18, 19].\n</reasoning>\nFin...
medium
[ "set_theory" ]
[ { "role": "user", "content": "Given A = [9, 10, 11, 15, 16, 17] and B = [3, 7, 8, 9, 11, 12, 15, 17], find A intersection B." }, { "role": "assistant", "content": "<reasoning>\nIntersection contains elements in both A and B. Result = [9, 11, 15, 17].\n</reasoning>\nFinal Answer: [9, 11, 15, 17]"...
medium
[ "set_theory" ]
[ { "role": "user", "content": "Find the area of a trapezoid with parallel sides 22, 7 and height 36." }, { "role": "assistant", "content": "<reasoning>\nArea = (1/2) × (a + b) × h = 0.5 × (22+7) × 36 = 522.0.\n</reasoning>\nFinal Answer: 522.0" } ]
medium
[ "geometry", "area" ]
[ { "role": "user", "content": "Simplify: 5/11 + 4/10" }, { "role": "assistant", "content": "<reasoning>\nAdd fractions: 5/11 + 4/10. Common denominator = 55. Result = 47/55.\n</reasoning>\nFinal Answer: 47/55" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "Find the mode of: [42, 68, 53, 59, 78, 74, 51, 98, 47]" }, { "role": "assistant", "content": "<reasoning>\nCount frequencies: {42: 1, 68: 1, 53: 1, 59: 1, 78: 1, 74: 1, 51: 1, 98: 1, 47: 1}. Most frequent: [42, 68, 53, 59, 78, 74, 51, 98, 47].\n</reasoning>\nFinal A...
easy
[ "statistics", "mode" ]
[ { "role": "user", "content": "Calculate: 626 × 72" }, { "role": "assistant", "content": "<reasoning>\nMultiply 626 by 72: 626 × 72 = 45072.\n</reasoning>\nFinal Answer: 45072" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "106 is what percentage of 602?" }, { "role": "assistant", "content": "<reasoning>\n(106/602) × 100 = 17.608%.\n</reasoning>\nFinal Answer: 17.608%" } ]
medium
[ "percentage", "ratio" ]
[ { "role": "user", "content": "Find the mode of: [89, 26, 90, 55, 52, 43, 65, 21, 51, 66]" }, { "role": "assistant", "content": "<reasoning>\nCount frequencies: {89: 1, 26: 1, 90: 1, 55: 1, 52: 1, 43: 1, 65: 1, 21: 1, 51: 1, 66: 1}. Most frequent: [89, 26, 90, 55, 52, 43, 65, 21, 51, 66].\n</reas...
easy
[ "statistics", "mode" ]
[ { "role": "user", "content": "Calculate: -143 - -32" }, { "role": "assistant", "content": "<reasoning>\nSubtract -32 from -143: -143 - -32 = -111.\n</reasoning>\nFinal Answer: -111" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Decrease 278 by 100%." }, { "role": "assistant", "content": "<reasoning>\nDecrease by 100%: 278 × (1 - 100/100) = 278 × 0.0 = 0.0.\n</reasoning>\nFinal Answer: 0.0" } ]
easy
[ "percentage", "arithmetic" ]
[ { "role": "user", "content": "In an arithmetic progression with first term 45 and common difference 9, find the 29th term." }, { "role": "assistant", "content": "<reasoning>\nnth term = a + (n-1)d = 45 + (29-1)×9 = 45 + 252 = 297.\n</reasoning>\nFinal Answer: 297" } ]
medium
[ "sequences", "arithmetic_progression" ]
[ { "role": "user", "content": "Calculate simple interest on a principal of ₹4490 at 14% per annum for 2 years." }, { "role": "assistant", "content": "<reasoning>\nSI = P × R × T / 100 = 4490 × 14 × 2 / 100 = 1257.2.\n</reasoning>\nFinal Answer: 1257.2" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Calculate simple interest on a principal of ₹15062 at 11% per annum for 8 years." }, { "role": "assistant", "content": "<reasoning>\nSI = P × R × T / 100 = 15062 × 11 × 8 / 100 = 13254.56.\n</reasoning>\nFinal Answer: 13254.56" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Calculate: 418 ÷ 567" }, { "role": "assistant", "content": "<reasoning>\nDivide 418 by 567. 418 ÷ 567 = 0 (integer division).\n</reasoning>\nFinal Answer: 0" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Given A = [6, 7, 14, 18, 19] and B = [7, 9, 11, 12], find A union B." }, { "role": "assistant", "content": "<reasoning>\nUnion includes all elements from both sets. Result = [6, 7, 9, 11, 12, 14, 18, 19].\n</reasoning>\nFinal Answer: [6, 7, 9, 11, 12, 14, 18, 19]" ...
medium
[ "set_theory" ]
[ { "role": "user", "content": "Solve for x: 29x + -11 = -243" }, { "role": "assistant", "content": "<reasoning>\nSubtract -11 from both sides: 29x = -232. Divide by 29: x = -8.\n</reasoning>\nFinal Answer: -8" } ]
easy
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Solve for x: 5x + 35 = -195" }, { "role": "assistant", "content": "<reasoning>\nSubtract 35 from both sides: 5x = -230. Divide by 5: x = -46.\n</reasoning>\nFinal Answer: -46" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Increase 230 by 25%." }, { "role": "assistant", "content": "<reasoning>\nIncrease by 25%: 230 × (1 + 25/100) = 230 × 1.25 = 287.5.\n</reasoning>\nFinal Answer: 287.5" } ]
easy
[ "percentage", "arithmetic" ]
[ { "role": "user", "content": "Simplify: 3/4 / 12/7" }, { "role": "assistant", "content": "<reasoning>\nDivide: (3/4) ÷ (12/7) = (3/4) × (7/12) = 7/16.\n</reasoning>\nFinal Answer: 7/16" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "Find the circumference of a circle with radius 45. (Use π ≈ 3.14159)" }, { "role": "assistant", "content": "<reasoning>\nCircumference = 2πr = 2 × π × 45 ≈ 282.7433.\n</reasoning>\nFinal Answer: 282.7433" } ]
easy
[ "geometry", "circumference" ]
[ { "role": "user", "content": "Find the area of a trapezoid with parallel sides 20, 27 and height 28." }, { "role": "assistant", "content": "<reasoning>\nArea = (1/2) × (a + b) × h = 0.5 × (20+27) × 28 = 658.0.\n</reasoning>\nFinal Answer: 658.0" } ]
medium
[ "geometry", "area" ]
[ { "role": "user", "content": "Simplify: 14/11 / 17/10" }, { "role": "assistant", "content": "<reasoning>\nDivide: (14/11) ÷ (17/10) = (14/11) × (10/17) = 140/187.\n</reasoning>\nFinal Answer: 140/187" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "Calculate: 150 × -553" }, { "role": "assistant", "content": "<reasoning>\nMultiply 150 by -553: 150 × -553 = -82950.\n</reasoning>\nFinal Answer: -82950" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "In an arithmetic progression with first term 44 and common difference 10, find the 31th term." }, { "role": "assistant", "content": "<reasoning>\nnth term = a + (n-1)d = 44 + (31-1)×10 = 44 + 300 = 344.\n</reasoning>\nFinal Answer: 344" } ]
medium
[ "sequences", "arithmetic_progression" ]
[ { "role": "user", "content": "Decrease 553 by 5%." }, { "role": "assistant", "content": "<reasoning>\nDecrease by 5%: 553 × (1 - 5/100) = 553 × 0.95 = 525.35.\n</reasoning>\nFinal Answer: 525.35" } ]
easy
[ "percentage", "arithmetic" ]
[ { "role": "user", "content": "Evaluate using order of operations: 31 * 11 + 2 * 44" }, { "role": "assistant", "content": "<reasoning>\nMultiply first: 31×11=341 and 2×44=88, then add: 429.\n</reasoning>\nFinal Answer: 429" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Find the area of a triangle with base 40 and height 3." }, { "role": "assistant", "content": "<reasoning>\nArea = (1/2) × base × height = 0.5 × 40 × 3 = 60.0.\n</reasoning>\nFinal Answer: 60.0" } ]
easy
[ "geometry", "area" ]
[ { "role": "user", "content": "If the ratio of A to B is 10:24 and A = 60, find B." }, { "role": "assistant", "content": "<reasoning>\nA/B = 10/24, so B = A × (24/10) = 60 × 24/10 = 144.0.\n</reasoning>\nFinal Answer: 144.0" } ]
medium
[ "ratio", "proportion" ]
[ { "role": "user", "content": "Solve for x: 3x + -42 = -162" }, { "role": "assistant", "content": "<reasoning>\nSubtract -42 from both sides: 3x = -120. Divide by 3: x = -40.\n</reasoning>\nFinal Answer: -40" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Find the area of a triangle with base 77 and height 18." }, { "role": "assistant", "content": "<reasoning>\nArea = (1/2) × base × height = 0.5 × 77 × 18 = 693.0.\n</reasoning>\nFinal Answer: 693.0" } ]
easy
[ "geometry", "area" ]
[ { "role": "user", "content": "Simplify: 20/6 - 1/16" }, { "role": "assistant", "content": "<reasoning>\nSubtract fractions: 20/6 - 1/16. LCD = 48. Result = 157/48.\n</reasoning>\nFinal Answer: 157/48" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "Calculate simple interest on a principal of ₹41451 at 8% per annum for 4 years." }, { "role": "assistant", "content": "<reasoning>\nSI = P × R × T / 100 = 41451 × 8 × 4 / 100 = 13264.32.\n</reasoning>\nFinal Answer: 13264.32" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Calculate: -348 ÷ 225" }, { "role": "assistant", "content": "<reasoning>\nDivide -348 by 225. -348 ÷ 225 = -2 (integer division).\n</reasoning>\nFinal Answer: -2" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Evaluate using order of operations: 31 + 25 ** 2 - 28" }, { "role": "assistant", "content": "<reasoning>\nExponent first: 25²=625, then 31+625-28=628.\n</reasoning>\nFinal Answer: 628" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Evaluate using order of operations: 23 * 17 + 33 * 18" }, { "role": "assistant", "content": "<reasoning>\nMultiply first: 23×17=391 and 33×18=594, then add: 985.\n</reasoning>\nFinal Answer: 985" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Simplify: 5/3 + 11/4" }, { "role": "assistant", "content": "<reasoning>\nAdd fractions: 5/3 + 11/4. Common denominator = 12. Result = 53/12.\n</reasoning>\nFinal Answer: 53/12" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "Find the area of a trapezoid with parallel sides 17, 32 and height 41." }, { "role": "assistant", "content": "<reasoning>\nArea = (1/2) × (a + b) × h = 0.5 × (17+32) × 41 = 1004.5.\n</reasoning>\nFinal Answer: 1004.5" } ]
medium
[ "geometry", "area" ]
[ { "role": "user", "content": "Find the median of: [54, 21, 52, 51, 89, 72, 77, 89, 80]" }, { "role": "assistant", "content": "<reasoning>\nSorted: [21, 51, 52, 54, 72, 77, 80, 89, 89]. Middle value(s) → median = 72.\n</reasoning>\nFinal Answer: 72" } ]
medium
[ "statistics", "median" ]
[ { "role": "user", "content": "Solve for x: 14x + -40 = -180" }, { "role": "assistant", "content": "<reasoning>\nSubtract -40 from both sides: 14x = -140. Divide by 14: x = -10.\n</reasoning>\nFinal Answer: -10" } ]
easy
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Evaluate using order of operations: 19 + 38 * 5 - 18" }, { "role": "assistant", "content": "<reasoning>\nBODMAS: multiply first: 38×5=190, then 19+190-18=191.\n</reasoning>\nFinal Answer: 191" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "If the ratio of A to B is 8:12 and A = 90, find B." }, { "role": "assistant", "content": "<reasoning>\nA/B = 8/12, so B = A × (12/8) = 90 × 12/8 = 135.0.\n</reasoning>\nFinal Answer: 135.0" } ]
medium
[ "ratio", "proportion" ]
[ { "role": "user", "content": "Solve for x: 4x + 18 = 146" }, { "role": "assistant", "content": "<reasoning>\nSubtract 18 from both sides: 4x = 128. Divide by 4: x = 32.\n</reasoning>\nFinal Answer: 32" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Solve for x: 17x + -49 = 206" }, { "role": "assistant", "content": "<reasoning>\nSubtract -49 from both sides: 17x = 255. Divide by 17: x = 15.\n</reasoning>\nFinal Answer: 15" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Find the perimeter of a rectangle with length 18 and width 53." }, { "role": "assistant", "content": "<reasoning>\nPerimeter = 2(l + w) = 2(18+53) = 2×71 = 142.\n</reasoning>\nFinal Answer: 142" } ]
easy
[ "geometry", "perimeter" ]
[ { "role": "user", "content": "Calculate: 463 mod -590" }, { "role": "assistant", "content": "<reasoning>\n463 mod -590: 463 = -590 × -1 + -127, so remainder = -127.\n</reasoning>\nFinal Answer: -127" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Decrease 38 by 3%." }, { "role": "assistant", "content": "<reasoning>\nDecrease by 3%: 38 × (1 - 3/100) = 38 × 0.97 = 36.86.\n</reasoning>\nFinal Answer: 36.86" } ]
easy
[ "percentage", "arithmetic" ]
[ { "role": "user", "content": "Find the circumference of a circle with radius 34. (Use π ≈ 3.14159)" }, { "role": "assistant", "content": "<reasoning>\nCircumference = 2πr = 2 × π × 34 ≈ 213.6283.\n</reasoning>\nFinal Answer: 213.6283" } ]
easy
[ "geometry", "circumference" ]