messages
listlengths
2
2
difficulty
stringclasses
3 values
tags
listlengths
1
3
[ { "role": "user", "content": "What is 40% of 291?" }, { "role": "assistant", "content": "<reasoning>\n40% of 291 = (40/100) × 291 = 116.4.\n</reasoning>\nFinal Answer: 116.4" } ]
easy
[ "percentage", "arithmetic" ]
[ { "role": "user", "content": "Find the area of a triangle with base 93 and height 79." }, { "role": "assistant", "content": "<reasoning>\nArea = (1/2) × base × height = 0.5 × 93 × 79 = 3673.5.\n</reasoning>\nFinal Answer: 3673.5" } ]
easy
[ "geometry", "area" ]
[ { "role": "user", "content": "Solve for x: 24x + -6 = 138" }, { "role": "assistant", "content": "<reasoning>\nSubtract -6 from both sides: 24x = 144. Divide by 24: x = 6.\n</reasoning>\nFinal Answer: 6" } ]
easy
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Calculate: 654 ÷ 485" }, { "role": "assistant", "content": "<reasoning>\nDivide 654 by 485. 654 ÷ 485 = 1 (integer division).\n</reasoning>\nFinal Answer: 1" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Find the median of: [97, 12, 52, 15, 12, 44, 75, 63]" }, { "role": "assistant", "content": "<reasoning>\nSorted: [12, 12, 15, 44, 52, 63, 75, 97]. Middle value(s) → median = 48.0.\n</reasoning>\nFinal Answer: 48.0" } ]
medium
[ "statistics", "median" ]
[ { "role": "user", "content": "Simplify: 5/2 + 14/10" }, { "role": "assistant", "content": "<reasoning>\nAdd fractions: 5/2 + 14/10. Common denominator = 10. Result = 39/10.\n</reasoning>\nFinal Answer: 39/10" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "If the ratio of A to B is 30:22 and A = 46, find B." }, { "role": "assistant", "content": "<reasoning>\nA/B = 30/22, so B = A × (22/30) = 46 × 22/30 = 33.7333.\n</reasoning>\nFinal Answer: 33.7333" } ]
medium
[ "ratio", "proportion" ]
[ { "role": "user", "content": "Calculate: -841 mod -899" }, { "role": "assistant", "content": "<reasoning>\n-841 mod -899: -841 = -899 × 0 + -841, so remainder = -841.\n</reasoning>\nFinal Answer: -841" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Calculate: -601 + -206" }, { "role": "assistant", "content": "<reasoning>\nAdd -601 and -206: -601 + -206 = -807.\n</reasoning>\nFinal Answer: -807" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Evaluate using order of operations: 18 + 29 ** 2 - 33" }, { "role": "assistant", "content": "<reasoning>\nExponent first: 29²=841, then 18+841-33=826.\n</reasoning>\nFinal Answer: 826" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Simplify: 6/15 - 1/20" }, { "role": "assistant", "content": "<reasoning>\nSubtract fractions: 6/15 - 1/20. LCD = 20. Result = 7/20.\n</reasoning>\nFinal Answer: 7/20" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "Calculate: -661 mod 766" }, { "role": "assistant", "content": "<reasoning>\n-661 mod 766: -661 = 766 × -1 + 105, so remainder = 105.\n</reasoning>\nFinal Answer: 105" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Solve: 4x² + (8)x + (4) = 0" }, { "role": "assistant", "content": "<reasoning>\nUsing quadratic formula: discriminant = 8² - 4×4×4 = 0. √discriminant = 0. x = (-(8) ± 0) / (2×4). Solutions: x = -1 (double root).\n</reasoning>\nFinal Answer: x = -1 (double root)" }...
hard
[ "algebra", "quadratic" ]
[ { "role": "user", "content": "Find the mode of: [39, 73, 82, 89, 36, 1]" }, { "role": "assistant", "content": "<reasoning>\nCount frequencies: {39: 1, 73: 1, 82: 1, 89: 1, 36: 1, 1: 1}. Most frequent: [39, 73, 82, 89, 36, 1].\n</reasoning>\nFinal Answer: [39, 73, 82, 89, 36, 1]" } ]
easy
[ "statistics", "mode" ]
[ { "role": "user", "content": "Evaluate using order of operations: 11 + 14 ** 2 - 30" }, { "role": "assistant", "content": "<reasoning>\nExponent first: 14²=196, then 11+196-30=177.\n</reasoning>\nFinal Answer: 177" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "4 workers can complete a job in 15 days. How many days will 18 workers take?" }, { "role": "assistant", "content": "<reasoning>\nTotal work = 4 × 15 = 60 worker-days. New time = 60 / 18 = 3.3333 days.\n</reasoning>\nFinal Answer: 3.3333" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Calculate: 68 + 38" }, { "role": "assistant", "content": "<reasoning>\nAdd 68 and 38: 68 + 38 = 106.\n</reasoning>\nFinal Answer: 106" } ]
easy
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Find the area of a trapezoid with parallel sides 11, 4 and height 45." }, { "role": "assistant", "content": "<reasoning>\nArea = (1/2) × (a + b) × h = 0.5 × (11+4) × 45 = 337.5.\n</reasoning>\nFinal Answer: 337.5" } ]
medium
[ "geometry", "area" ]
[ { "role": "user", "content": "Find the range of: [19, 6, 6, 87, 93, 30, 8, 71, 5]" }, { "role": "assistant", "content": "<reasoning>\nRange = max - min = 93 - 5 = 88.\n</reasoning>\nFinal Answer: 88" } ]
easy
[ "statistics", "range" ]
[ { "role": "user", "content": "Decrease 102 by 50%." }, { "role": "assistant", "content": "<reasoning>\nDecrease by 50%: 102 × (1 - 50/100) = 102 × 0.5 = 51.0.\n</reasoning>\nFinal Answer: 51.0" } ]
easy
[ "percentage", "arithmetic" ]
[ { "role": "user", "content": "Calculate: -822 + -877" }, { "role": "assistant", "content": "<reasoning>\nAdd -822 and -877: -822 + -877 = -1699.\n</reasoning>\nFinal Answer: -1699" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "List all positive factors of 16." }, { "role": "assistant", "content": "<reasoning>\nCheck each number from 1 to 16: factors are [1, 2, 4, 8, 16].\n</reasoning>\nFinal Answer: [1, 2, 4, 8, 16]" } ]
easy
[ "number_theory", "factors" ]
[ { "role": "user", "content": "91 is what percentage of 817?" }, { "role": "assistant", "content": "<reasoning>\n(91/817) × 100 = 11.1383%.\n</reasoning>\nFinal Answer: 11.1383%" } ]
medium
[ "percentage", "ratio" ]
[ { "role": "user", "content": "Calculate: 362 × 651" }, { "role": "assistant", "content": "<reasoning>\nMultiply 362 by 651: 362 × 651 = 235662.\n</reasoning>\nFinal Answer: 235662" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Evaluate using order of operations: (18 + 5) * (21 - 24)" }, { "role": "assistant", "content": "<reasoning>\nBrackets first: (18+5)=23, (21-24)=-3, then 23×-3=-69.\n</reasoning>\nFinal Answer: -69" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Find the GCD (Greatest Common Divisor) of 140 and 89." }, { "role": "assistant", "content": "<reasoning>\nUsing Euclidean algorithm: GCD(140,89) = 1.\n</reasoning>\nFinal Answer: 1" } ]
medium
[ "number_theory", "gcd" ]
[ { "role": "user", "content": "29 is what percentage of 202?" }, { "role": "assistant", "content": "<reasoning>\n(29/202) × 100 = 14.3564%.\n</reasoning>\nFinal Answer: 14.3564%" } ]
medium
[ "percentage", "ratio" ]
[ { "role": "user", "content": "Solve for x: 30x + 9 = 1089" }, { "role": "assistant", "content": "<reasoning>\nSubtract 9 from both sides: 30x = 1080. Divide by 30: x = 36.\n</reasoning>\nFinal Answer: 36" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Calculate: -323 ÷ -782" }, { "role": "assistant", "content": "<reasoning>\nDivide -323 by -782. -323 ÷ -782 = 0 (integer division).\n</reasoning>\nFinal Answer: 0" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Solve for x: 21x + 9 = 450" }, { "role": "assistant", "content": "<reasoning>\nSubtract 9 from both sides: 21x = 441. Divide by 21: x = 21.\n</reasoning>\nFinal Answer: 21" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Find the area of a triangle with base 42 and height 36." }, { "role": "assistant", "content": "<reasoning>\nArea = (1/2) × base × height = 0.5 × 42 × 36 = 756.0.\n</reasoning>\nFinal Answer: 756.0" } ]
easy
[ "geometry", "area" ]
[ { "role": "user", "content": "If the ratio of A to B is 22:29 and A = 10, find B." }, { "role": "assistant", "content": "<reasoning>\nA/B = 22/29, so B = A × (29/22) = 10 × 29/22 = 13.1818.\n</reasoning>\nFinal Answer: 13.1818" } ]
medium
[ "ratio", "proportion" ]
[ { "role": "user", "content": "352 is what percentage of 428?" }, { "role": "assistant", "content": "<reasoning>\n(352/428) × 100 = 82.243%.\n</reasoning>\nFinal Answer: 82.243%" } ]
medium
[ "percentage", "ratio" ]
[ { "role": "user", "content": "Simplify: 12/4 / 7/2" }, { "role": "assistant", "content": "<reasoning>\nDivide: (12/4) ÷ (7/2) = (12/4) × (2/7) = 6/7.\n</reasoning>\nFinal Answer: 6/7" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "A train travels at 65 km/h. How far does it travel in 10 hours and 18 minutes?" }, { "role": "assistant", "content": "<reasoning>\nTime = 10 + 18/60 = 10.3000 hours. Distance = speed × time = 65 × 10.3000 = 669.5 km.\n</reasoning>\nFinal Answer: 669.5" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Find the area of a parallelogram with base 62 and height 87." }, { "role": "assistant", "content": "<reasoning>\nArea = base × height = 62 × 87 = 5394.\n</reasoning>\nFinal Answer: 5394" } ]
easy
[ "geometry", "area" ]
[ { "role": "user", "content": "Increase 514 by 17%." }, { "role": "assistant", "content": "<reasoning>\nIncrease by 17%: 514 × (1 + 17/100) = 514 × 1.17 = 601.38.\n</reasoning>\nFinal Answer: 601.38" } ]
easy
[ "percentage", "arithmetic" ]
[ { "role": "user", "content": "If the ratio of A to B is 4:45 and A = 2, find B." }, { "role": "assistant", "content": "<reasoning>\nA/B = 4/45, so B = A × (45/4) = 2 × 45/4 = 22.5.\n</reasoning>\nFinal Answer: 22.5" } ]
medium
[ "ratio", "proportion" ]
[ { "role": "user", "content": "Find the median of: [71, 1, 72, 77, 69, 35, 19]" }, { "role": "assistant", "content": "<reasoning>\nSorted: [1, 19, 35, 69, 71, 72, 77]. Middle value(s) → median = 69.\n</reasoning>\nFinal Answer: 69" } ]
medium
[ "statistics", "median" ]
[ { "role": "user", "content": "Calculate: -230 mod 962" }, { "role": "assistant", "content": "<reasoning>\n-230 mod 962: -230 = 962 × -1 + 732, so remainder = 732.\n</reasoning>\nFinal Answer: 732" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Solve for x: 18x + -26 = 478" }, { "role": "assistant", "content": "<reasoning>\nSubtract -26 from both sides: 18x = 504. Divide by 18: x = 28.\n</reasoning>\nFinal Answer: 28" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Find the median of: [24, 56, 11, 78, 56, 32, 10, 48, 27]" }, { "role": "assistant", "content": "<reasoning>\nSorted: [10, 11, 24, 27, 32, 48, 56, 56, 78]. Middle value(s) → median = 32.\n</reasoning>\nFinal Answer: 32" } ]
medium
[ "statistics", "median" ]
[ { "role": "user", "content": "Solve for x: 8x + 34 = -182" }, { "role": "assistant", "content": "<reasoning>\nSubtract 34 from both sides: 8x = -216. Divide by 8: x = -27.\n</reasoning>\nFinal Answer: -27" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Solve for x: 15x + 24 = -111" }, { "role": "assistant", "content": "<reasoning>\nSubtract 24 from both sides: 15x = -135. Divide by 15: x = -9.\n</reasoning>\nFinal Answer: -9" } ]
easy
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Calculate simple interest on a principal of ₹19284 at 15% per annum for 7 years." }, { "role": "assistant", "content": "<reasoning>\nSI = P × R × T / 100 = 19284 × 15 × 7 / 100 = 20248.2.\n</reasoning>\nFinal Answer: 20248.2" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "137 is what percentage of 213?" }, { "role": "assistant", "content": "<reasoning>\n(137/213) × 100 = 64.3192%.\n</reasoning>\nFinal Answer: 64.3192%" } ]
medium
[ "percentage", "ratio" ]
[ { "role": "user", "content": "Find the LCM (Least Common Multiple) of 22 and 37." }, { "role": "assistant", "content": "<reasoning>\nLCM = (a×b)/GCD = (22×37)/1 = 814.\n</reasoning>\nFinal Answer: 814" } ]
medium
[ "number_theory", "lcm" ]
[ { "role": "user", "content": "Find the GCD (Greatest Common Divisor) of 7 and 24." }, { "role": "assistant", "content": "<reasoning>\nUsing Euclidean algorithm: GCD(7,24) = 1.\n</reasoning>\nFinal Answer: 1" } ]
medium
[ "number_theory", "gcd" ]
[ { "role": "user", "content": "In an arithmetic progression with first term 26 and common difference 12, find the 21th term." }, { "role": "assistant", "content": "<reasoning>\nnth term = a + (n-1)d = 26 + (21-1)×12 = 26 + 240 = 266.\n</reasoning>\nFinal Answer: 266" } ]
medium
[ "sequences", "arithmetic_progression" ]
[ { "role": "user", "content": "Calculate simple interest on a principal of ₹49891 at 2% per annum for 8 years." }, { "role": "assistant", "content": "<reasoning>\nSI = P × R × T / 100 = 49891 × 2 × 8 / 100 = 7982.56.\n</reasoning>\nFinal Answer: 7982.56" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Find the perimeter of a rectangle with length 59 and width 90." }, { "role": "assistant", "content": "<reasoning>\nPerimeter = 2(l + w) = 2(59+90) = 2×149 = 298.\n</reasoning>\nFinal Answer: 298" } ]
easy
[ "geometry", "perimeter" ]
[ { "role": "user", "content": "Find the GCD (Greatest Common Divisor) of 152 and 107." }, { "role": "assistant", "content": "<reasoning>\nUsing Euclidean algorithm: GCD(152,107) = 1.\n</reasoning>\nFinal Answer: 1" } ]
medium
[ "number_theory", "gcd" ]
[ { "role": "user", "content": "Solve for x: 14x + -47 = -565" }, { "role": "assistant", "content": "<reasoning>\nSubtract -47 from both sides: 14x = -518. Divide by 14: x = -37.\n</reasoning>\nFinal Answer: -37" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "An item costs ₹4638. If sales tax is 28%, what is the total price?" }, { "role": "assistant", "content": "<reasoning>\nTax amount = 4638 × 28/100 = 1298.64. Total = 4638 + 1298.64 = 5936.64.\n</reasoning>\nFinal Answer: 5936.64" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Calculate: 881 × 8" }, { "role": "assistant", "content": "<reasoning>\nMultiply 881 by 8: 881 × 8 = 7048.\n</reasoning>\nFinal Answer: 7048" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Find the area of a triangle with base 86 and height 78." }, { "role": "assistant", "content": "<reasoning>\nArea = (1/2) × base × height = 0.5 × 86 × 78 = 3354.0.\n</reasoning>\nFinal Answer: 3354.0" } ]
easy
[ "geometry", "area" ]
[ { "role": "user", "content": "Solve for x: 3x + -47 = -50" }, { "role": "assistant", "content": "<reasoning>\nSubtract -47 from both sides: 3x = -3. Divide by 3: x = -1.\n</reasoning>\nFinal Answer: -1" } ]
easy
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Calculate: -506 ÷ -779" }, { "role": "assistant", "content": "<reasoning>\nDivide -506 by -779. -506 ÷ -779 = 0 (integer division).\n</reasoning>\nFinal Answer: 0" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Find the range of: [39, 89, 56, 67, 4, 34, 52, 15]" }, { "role": "assistant", "content": "<reasoning>\nRange = max - min = 89 - 4 = 85.\n</reasoning>\nFinal Answer: 85" } ]
easy
[ "statistics", "range" ]
[ { "role": "user", "content": "Increase 563 by 65%." }, { "role": "assistant", "content": "<reasoning>\nIncrease by 65%: 563 × (1 + 65/100) = 563 × 1.65 = 928.95.\n</reasoning>\nFinal Answer: 928.95" } ]
easy
[ "percentage", "arithmetic" ]
[ { "role": "user", "content": "Two trains start towards each other from stations 398 km apart. Their speeds are 105 km/h and 94 km/h. When will they meet?" }, { "role": "assistant", "content": "<reasoning>\nCombined speed = 105+94=199 km/h. Time = 398/199 = 2.0 hours.\n</reasoning>\nFinal Answer:...
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Solve for x: 6x + 8 = 296" }, { "role": "assistant", "content": "<reasoning>\nSubtract 8 from both sides: 6x = 288. Divide by 6: x = 48.\n</reasoning>\nFinal Answer: 48" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Calculate: 871 + -396" }, { "role": "assistant", "content": "<reasoning>\nAdd 871 and -396: 871 + -396 = 475.\n</reasoning>\nFinal Answer: 475" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Increase 754 by 45%." }, { "role": "assistant", "content": "<reasoning>\nIncrease by 45%: 754 × (1 + 45/100) = 754 × 1.45 = 1093.3.\n</reasoning>\nFinal Answer: 1093.3" } ]
easy
[ "percentage", "arithmetic" ]
[ { "role": "user", "content": "Evaluate using order of operations: 43 + 21 * 15 - 11" }, { "role": "assistant", "content": "<reasoning>\nBODMAS: multiply first: 21×15=315, then 43+315-11=347.\n</reasoning>\nFinal Answer: 347" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Find the area of a rectangle with length 100 and width 27." }, { "role": "assistant", "content": "<reasoning>\nArea = length × width = 100 × 27 = 2700.\n</reasoning>\nFinal Answer: 2700" } ]
easy
[ "geometry", "area" ]
[ { "role": "user", "content": "An item costs ₹3615. If sales tax is 5%, what is the total price?" }, { "role": "assistant", "content": "<reasoning>\nTax amount = 3615 × 5/100 = 180.75. Total = 3615 + 180.75 = 3795.75.\n</reasoning>\nFinal Answer: 3795.75" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Calculate: 772 + 387" }, { "role": "assistant", "content": "<reasoning>\nAdd 772 and 387: 772 + 387 = 1159.\n</reasoning>\nFinal Answer: 1159" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Evaluate using order of operations: 19 + 2 ** 2 - 47" }, { "role": "assistant", "content": "<reasoning>\nExponent first: 2²=4, then 19+4-47=-24.\n</reasoning>\nFinal Answer: -24" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Calculate: -130 - 475" }, { "role": "assistant", "content": "<reasoning>\nSubtract 475 from -130: -130 - 475 = -605.\n</reasoning>\nFinal Answer: -605" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Evaluate using order of operations: 3 + 5 * 39 - 50" }, { "role": "assistant", "content": "<reasoning>\nBODMAS: multiply first: 5×39=195, then 3+195-50=148.\n</reasoning>\nFinal Answer: 148" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Solve: 3x² + (27)x + (42) = 0" }, { "role": "assistant", "content": "<reasoning>\nUsing quadratic formula: discriminant = 27² - 4×3×42 = 225. √discriminant = 15. x = (-(27) ± 15) / (2×3). Solutions: x = -2 or x = -7.\n</reasoning>\nFinal Answer: x = -2 or x = -7" ...
hard
[ "algebra", "quadratic" ]
[ { "role": "user", "content": "Ravi has 102 apples and buys 53 more. How many apples does he have now?" }, { "role": "assistant", "content": "<reasoning>\nTotal = 102 + 53 = 155.\n</reasoning>\nFinal Answer: 155" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Evaluate using order of operations: 38 + 11 * 44 - 34" }, { "role": "assistant", "content": "<reasoning>\nBODMAS: multiply first: 11×44=484, then 38+484-34=488.\n</reasoning>\nFinal Answer: 488" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Find the mode of: [50, 8, 96, 68, 48, 65, 28, 45]" }, { "role": "assistant", "content": "<reasoning>\nCount frequencies: {50: 1, 8: 1, 96: 1, 68: 1, 48: 1, 65: 1, 28: 1, 45: 1}. Most frequent: [50, 8, 96, 68, 48, 65, 28, 45].\n</reasoning>\nFinal Answer: [50, 8, 96,...
easy
[ "statistics", "mode" ]
[ { "role": "user", "content": "In an arithmetic progression with first term 34 and common difference 5, find the 19th term." }, { "role": "assistant", "content": "<reasoning>\nnth term = a + (n-1)d = 34 + (19-1)×5 = 34 + 90 = 124.\n</reasoning>\nFinal Answer: 124" } ]
medium
[ "sequences", "arithmetic_progression" ]
[ { "role": "user", "content": "Find the area of a trapezoid with parallel sides 24, 11 and height 21." }, { "role": "assistant", "content": "<reasoning>\nArea = (1/2) × (a + b) × h = 0.5 × (24+11) × 21 = 367.5.\n</reasoning>\nFinal Answer: 367.5" } ]
medium
[ "geometry", "area" ]
[ { "role": "user", "content": "10 workers can complete a job in 5 days. How many days will 10 workers take?" }, { "role": "assistant", "content": "<reasoning>\nTotal work = 10 × 5 = 50 worker-days. New time = 50 / 10 = 5.0 days.\n</reasoning>\nFinal Answer: 5.0" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Simplify: 7/18 - 10/7" }, { "role": "assistant", "content": "<reasoning>\nSubtract fractions: 7/18 - 10/7. LCD = 126. Result = -131/126.\n</reasoning>\nFinal Answer: -131/126" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "Simplify: 15/17 * 10/13" }, { "role": "assistant", "content": "<reasoning>\nMultiply: (15/17) × (10/13) = (150/221) = 150/221 after simplification.\n</reasoning>\nFinal Answer: 150/221" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "What is 30% of 663?" }, { "role": "assistant", "content": "<reasoning>\n30% of 663 = (30/100) × 663 = 198.9.\n</reasoning>\nFinal Answer: 198.9" } ]
easy
[ "percentage", "arithmetic" ]
[ { "role": "user", "content": "Find the next term in the sequence: [31, 46, 61, 76, 91]" }, { "role": "assistant", "content": "<reasoning>\nThis is an arithmetic sequence with first term 31 and common difference 15. Next term = 91 + 15 = 106.\n</reasoning>\nFinal Answer: 106" } ]
medium
[ "sequences", "arithmetic_progression" ]
[ { "role": "user", "content": "If the ratio of A to B is 22:39 and A = 35, find B." }, { "role": "assistant", "content": "<reasoning>\nA/B = 22/39, so B = A × (39/22) = 35 × 39/22 = 62.0455.\n</reasoning>\nFinal Answer: 62.0455" } ]
medium
[ "ratio", "proportion" ]
[ { "role": "user", "content": "Find the area of a rectangle with length 6 and width 64." }, { "role": "assistant", "content": "<reasoning>\nArea = length × width = 6 × 64 = 384.\n</reasoning>\nFinal Answer: 384" } ]
easy
[ "geometry", "area" ]
[ { "role": "user", "content": "Solve for x: 28x + 10 = -1390" }, { "role": "assistant", "content": "<reasoning>\nSubtract 10 from both sides: 28x = -1400. Divide by 28: x = -50.\n</reasoning>\nFinal Answer: -50" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Two trains start towards each other from stations 710 km apart. Their speeds are 69 km/h and 95 km/h. When will they meet?" }, { "role": "assistant", "content": "<reasoning>\nCombined speed = 69+95=164 km/h. Time = 710/164 = 4.3293 hours.\n</reasoning>\nFinal Answer...
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Find the median of: [96, 53, 48, 67, 54, 36, 17, 28, 29]" }, { "role": "assistant", "content": "<reasoning>\nSorted: [17, 28, 29, 36, 48, 53, 54, 67, 96]. Middle value(s) → median = 48.\n</reasoning>\nFinal Answer: 48" } ]
medium
[ "statistics", "median" ]
[ { "role": "user", "content": "Given A = [9, 11, 12, 13, 16, 17] and B = [13, 15, 17], find A difference B." }, { "role": "assistant", "content": "<reasoning>\nA - B contains elements in A but not in B. Result = [9, 11, 12, 16].\n</reasoning>\nFinal Answer: [9, 11, 12, 16]" } ]
medium
[ "set_theory" ]
[ { "role": "user", "content": "Find the area of a triangle with base 75 and height 30." }, { "role": "assistant", "content": "<reasoning>\nArea = (1/2) × base × height = 0.5 × 75 × 30 = 1125.0.\n</reasoning>\nFinal Answer: 1125.0" } ]
easy
[ "geometry", "area" ]
[ { "role": "user", "content": "Simplify: 19/18 + 12/20" }, { "role": "assistant", "content": "<reasoning>\nAdd fractions: 19/18 + 12/20. Common denominator = 90. Result = 149/90.\n</reasoning>\nFinal Answer: 149/90" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "Evaluate using order of operations: (49 + 40) * (33 - 18)" }, { "role": "assistant", "content": "<reasoning>\nBrackets first: (49+40)=89, (33-18)=15, then 89×15=1335.\n</reasoning>\nFinal Answer: 1335" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Two trains start towards each other from stations 964 km apart. Their speeds are 89 km/h and 84 km/h. When will they meet?" }, { "role": "assistant", "content": "<reasoning>\nCombined speed = 89+84=173 km/h. Time = 964/173 = 5.5723 hours.\n</reasoning>\nFinal Answer...
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Calculate: 799 - -214" }, { "role": "assistant", "content": "<reasoning>\nSubtract -214 from 799: 799 - -214 = 1013.\n</reasoning>\nFinal Answer: 1013" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Calculate: -312 mod 370" }, { "role": "assistant", "content": "<reasoning>\n-312 mod 370: -312 = 370 × -1 + 58, so remainder = 58.\n</reasoning>\nFinal Answer: 58" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Evaluate using order of operations: 20 + 5 * 4 - 38" }, { "role": "assistant", "content": "<reasoning>\nBODMAS: multiply first: 5×4=20, then 20+20-38=2.\n</reasoning>\nFinal Answer: 2" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Evaluate using order of operations: 9 + 20 * 45 - 48" }, { "role": "assistant", "content": "<reasoning>\nBODMAS: multiply first: 20×45=900, then 9+900-48=861.\n</reasoning>\nFinal Answer: 861" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Find the mode of: [27, 99, 88, 37, 49, 86, 5, 47, 16]" }, { "role": "assistant", "content": "<reasoning>\nCount frequencies: {27: 1, 99: 1, 88: 1, 37: 1, 49: 1, 86: 1, 5: 1, 47: 1, 16: 1}. Most frequent: [27, 99, 88, 37, 49, 86, 5, 47, 16].\n</reasoning>\nFinal Answ...
easy
[ "statistics", "mode" ]
[ { "role": "user", "content": "Find the perimeter of a rectangle with length 13 and width 73." }, { "role": "assistant", "content": "<reasoning>\nPerimeter = 2(l + w) = 2(13+73) = 2×86 = 172.\n</reasoning>\nFinal Answer: 172" } ]
easy
[ "geometry", "perimeter" ]
[ { "role": "user", "content": "Calculate: -342 × -541" }, { "role": "assistant", "content": "<reasoning>\nMultiply -342 by -541: -342 × -541 = 185022.\n</reasoning>\nFinal Answer: 185022" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "An item costs ₹1055. If sales tax is 12%, what is the total price?" }, { "role": "assistant", "content": "<reasoning>\nTax amount = 1055 × 12/100 = 126.6. Total = 1055 + 126.6 = 1181.6.\n</reasoning>\nFinal Answer: 1181.6" } ]
medium
[ "word_problem", "applied_math" ]