messages
listlengths
2
2
difficulty
stringclasses
3 values
tags
listlengths
1
3
[ { "role": "user", "content": "Two trains start towards each other from stations 211 km apart. Their speeds are 40 km/h and 44 km/h. When will they meet?" }, { "role": "assistant", "content": "<reasoning>\nCombined speed = 40+44=84 km/h. Time = 211/84 = 2.5119 hours.\n</reasoning>\nFinal Answer: ...
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "A train travels at 140 km/h. How far does it travel in 10 hours and 13 minutes?" }, { "role": "assistant", "content": "<reasoning>\nTime = 10 + 13/60 = 10.2167 hours. Distance = speed × time = 140 × 10.2167 = 1430.3333 km.\n</reasoning>\nFinal Answer: 1430.3333" }...
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "15 workers can complete a job in 29 days. How many days will 13 workers take?" }, { "role": "assistant", "content": "<reasoning>\nTotal work = 15 × 29 = 435 worker-days. New time = 435 / 13 = 33.4615 days.\n</reasoning>\nFinal Answer: 33.4615" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Simplify: 14/17 * 6/15" }, { "role": "assistant", "content": "<reasoning>\nMultiply: (14/17) × (6/15) = (84/255) = 28/85 after simplification.\n</reasoning>\nFinal Answer: 28/85" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "Solve for x: 3x + 17 = 155" }, { "role": "assistant", "content": "<reasoning>\nSubtract 17 from both sides: 3x = 138. Divide by 3: x = 46.\n</reasoning>\nFinal Answer: 46" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "39 is what percentage of 354?" }, { "role": "assistant", "content": "<reasoning>\n(39/354) × 100 = 11.0169%.\n</reasoning>\nFinal Answer: 11.0169%" } ]
medium
[ "percentage", "ratio" ]
[ { "role": "user", "content": "Solve for x: 17x + 3 = 513" }, { "role": "assistant", "content": "<reasoning>\nSubtract 3 from both sides: 17x = 510. Divide by 17: x = 30.\n</reasoning>\nFinal Answer: 30" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Calculate: -478 × -230" }, { "role": "assistant", "content": "<reasoning>\nMultiply -478 by -230: -478 × -230 = 109940.\n</reasoning>\nFinal Answer: 109940" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Find the mean of: [67, 3, 8, 42, 37]" }, { "role": "assistant", "content": "<reasoning>\nMean = sum/count = 157/5 = 31.4.\n</reasoning>\nFinal Answer: 31.4" } ]
easy
[ "statistics", "mean" ]
[ { "role": "user", "content": "Solve for x: 8x + -45 = -205" }, { "role": "assistant", "content": "<reasoning>\nSubtract -45 from both sides: 8x = -160. Divide by 8: x = -20.\n</reasoning>\nFinal Answer: -20" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Simplify: 17/5 / 14/5" }, { "role": "assistant", "content": "<reasoning>\nDivide: (17/5) ÷ (14/5) = (17/5) × (5/14) = 17/14.\n</reasoning>\nFinal Answer: 17/14" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "Evaluate using order of operations: 5 + 30 * 39 - 20" }, { "role": "assistant", "content": "<reasoning>\nBODMAS: multiply first: 30×39=1170, then 5+1170-20=1155.\n</reasoning>\nFinal Answer: 1155" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Calculate: 254 mod 119" }, { "role": "assistant", "content": "<reasoning>\n254 mod 119: 254 = 119 × 2 + 16, so remainder = 16.\n</reasoning>\nFinal Answer: 16" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Find the LCM (Least Common Multiple) of 8 and 16." }, { "role": "assistant", "content": "<reasoning>\nLCM = (a×b)/GCD = (8×16)/8 = 16.\n</reasoning>\nFinal Answer: 16" } ]
medium
[ "number_theory", "lcm" ]
[ { "role": "user", "content": "Find the area of a parallelogram with base 65 and height 20." }, { "role": "assistant", "content": "<reasoning>\nArea = base × height = 65 × 20 = 1300.\n</reasoning>\nFinal Answer: 1300" } ]
easy
[ "geometry", "area" ]
[ { "role": "user", "content": "Evaluate using order of operations: 34 * 20 + 37 * 4" }, { "role": "assistant", "content": "<reasoning>\nMultiply first: 34×20=680 and 37×4=148, then add: 828.\n</reasoning>\nFinal Answer: 828" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Decrease 738 by 75%." }, { "role": "assistant", "content": "<reasoning>\nDecrease by 75%: 738 × (1 - 75/100) = 738 × 0.25 = 184.5.\n</reasoning>\nFinal Answer: 184.5" } ]
easy
[ "percentage", "arithmetic" ]
[ { "role": "user", "content": "Given A = [5, 8, 9, 11, 12, 13, 17, 18] and B = [6, 9, 10, 12, 13], find A symmetric diff B." }, { "role": "assistant", "content": "<reasoning>\nSymmetric difference contains elements in exactly one of the sets. Result = [5, 6, 8, 10, 11, 17, 18].\n</reasoning>\nFin...
medium
[ "set_theory" ]
[ { "role": "user", "content": "Calculate: 329 × -466" }, { "role": "assistant", "content": "<reasoning>\nMultiply 329 by -466: 329 × -466 = -153314.\n</reasoning>\nFinal Answer: -153314" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Calculate: 138 + 872" }, { "role": "assistant", "content": "<reasoning>\nAdd 138 and 872: 138 + 872 = 1010.\n</reasoning>\nFinal Answer: 1010" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Solve for x: 18x + 27 = -675" }, { "role": "assistant", "content": "<reasoning>\nSubtract 27 from both sides: 18x = -702. Divide by 18: x = -39.\n</reasoning>\nFinal Answer: -39" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Two trains start towards each other from stations 128 km apart. Their speeds are 110 km/h and 113 km/h. When will they meet?" }, { "role": "assistant", "content": "<reasoning>\nCombined speed = 110+113=223 km/h. Time = 128/223 = 0.574 hours.\n</reasoning>\nFinal Ans...
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Calculate: -523 ÷ -317" }, { "role": "assistant", "content": "<reasoning>\nDivide -523 by -317. -523 ÷ -317 = 1 (integer division).\n</reasoning>\nFinal Answer: 1" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Find the LCM (Least Common Multiple) of 45 and 8." }, { "role": "assistant", "content": "<reasoning>\nLCM = (a×b)/GCD = (45×8)/1 = 360.\n</reasoning>\nFinal Answer: 360" } ]
medium
[ "number_theory", "lcm" ]
[ { "role": "user", "content": "Simplify: 1/16 - 5/7" }, { "role": "assistant", "content": "<reasoning>\nSubtract fractions: 1/16 - 5/7. LCD = 112. Result = -73/112.\n</reasoning>\nFinal Answer: -73/112" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "Find the area of a rectangle with length 99 and width 90." }, { "role": "assistant", "content": "<reasoning>\nArea = length × width = 99 × 90 = 8910.\n</reasoning>\nFinal Answer: 8910" } ]
easy
[ "geometry", "area" ]
[ { "role": "user", "content": "Calculate: 742 + 923" }, { "role": "assistant", "content": "<reasoning>\nAdd 742 and 923: 742 + 923 = 1665.\n</reasoning>\nFinal Answer: 1665" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Solve for x: 12x + 3 = 87" }, { "role": "assistant", "content": "<reasoning>\nSubtract 3 from both sides: 12x = 84. Divide by 12: x = 7.\n</reasoning>\nFinal Answer: 7" } ]
easy
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Evaluate using order of operations: (2 + 34) * (12 - 25)" }, { "role": "assistant", "content": "<reasoning>\nBrackets first: (2+34)=36, (12-25)=-13, then 36×-13=-468.\n</reasoning>\nFinal Answer: -468" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Find the area of a triangle with base 49 and height 55." }, { "role": "assistant", "content": "<reasoning>\nArea = (1/2) × base × height = 0.5 × 49 × 55 = 1347.5.\n</reasoning>\nFinal Answer: 1347.5" } ]
easy
[ "geometry", "area" ]
[ { "role": "user", "content": "Calculate: 465 mod -476" }, { "role": "assistant", "content": "<reasoning>\n465 mod -476: 465 = -476 × -1 + -11, so remainder = -11.\n</reasoning>\nFinal Answer: -11" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "What is 15% of 248?" }, { "role": "assistant", "content": "<reasoning>\n15% of 248 = (15/100) × 248 = 37.2.\n</reasoning>\nFinal Answer: 37.2" } ]
easy
[ "percentage", "arithmetic" ]
[ { "role": "user", "content": "Calculate: -528 - 160" }, { "role": "assistant", "content": "<reasoning>\nSubtract 160 from -528: -528 - 160 = -688.\n</reasoning>\nFinal Answer: -688" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Increase 154 by 100%." }, { "role": "assistant", "content": "<reasoning>\nIncrease by 100%: 154 × (1 + 100/100) = 154 × 2.0 = 308.0.\n</reasoning>\nFinal Answer: 308.0" } ]
easy
[ "percentage", "arithmetic" ]
[ { "role": "user", "content": "Ravi has 92 apples and buys 82 more. How many apples does he have now?" }, { "role": "assistant", "content": "<reasoning>\nTotal = 92 + 82 = 174.\n</reasoning>\nFinal Answer: 174" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Find the perimeter of a triangle with sides 13, 28, and 40." }, { "role": "assistant", "content": "<reasoning>\nPerimeter = sum of all sides = 13 + 28 + 40 = 81.\n</reasoning>\nFinal Answer: 81" } ]
easy
[ "geometry", "perimeter" ]
[ { "role": "user", "content": "Calculate: -336 ÷ -936" }, { "role": "assistant", "content": "<reasoning>\nDivide -336 by -936. -336 ÷ -936 = 0 (integer division).\n</reasoning>\nFinal Answer: 0" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Calculate: -795 mod 717" }, { "role": "assistant", "content": "<reasoning>\n-795 mod 717: -795 = 717 × -2 + 639, so remainder = 639.\n</reasoning>\nFinal Answer: 639" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "A train travels at 155 km/h. How far does it travel in 3 hours and 38 minutes?" }, { "role": "assistant", "content": "<reasoning>\nTime = 3 + 38/60 = 3.6333 hours. Distance = speed × time = 155 × 3.6333 = 563.1667 km.\n</reasoning>\nFinal Answer: 563.1667" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Find the perimeter of a rectangle with length 40 and width 66." }, { "role": "assistant", "content": "<reasoning>\nPerimeter = 2(l + w) = 2(40+66) = 2×106 = 212.\n</reasoning>\nFinal Answer: 212" } ]
easy
[ "geometry", "perimeter" ]
[ { "role": "user", "content": "Calculate: -801 ÷ 772" }, { "role": "assistant", "content": "<reasoning>\nDivide -801 by 772. -801 ÷ 772 = -2 (integer division).\n</reasoning>\nFinal Answer: -2" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Evaluate using order of operations: 22 + 45 ** 2 - 29" }, { "role": "assistant", "content": "<reasoning>\nExponent first: 45²=2025, then 22+2025-29=2018.\n</reasoning>\nFinal Answer: 2018" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Ravi has 153 apples and buys 2 more. How many apples does he have now?" }, { "role": "assistant", "content": "<reasoning>\nTotal = 153 + 2 = 155.\n</reasoning>\nFinal Answer: 155" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Find the area of a parallelogram with base 62 and height 36." }, { "role": "assistant", "content": "<reasoning>\nArea = base × height = 62 × 36 = 2232.\n</reasoning>\nFinal Answer: 2232" } ]
easy
[ "geometry", "area" ]
[ { "role": "user", "content": "Given A = [2, 5, 10, 11, 19] and B = [2, 10, 11, 15], find A intersection B." }, { "role": "assistant", "content": "<reasoning>\nIntersection contains elements in both A and B. Result = [2, 10, 11].\n</reasoning>\nFinal Answer: [2, 10, 11]" } ]
medium
[ "set_theory" ]
[ { "role": "user", "content": "Two trains start towards each other from stations 315 km apart. Their speeds are 118 km/h and 64 km/h. When will they meet?" }, { "role": "assistant", "content": "<reasoning>\nCombined speed = 118+64=182 km/h. Time = 315/182 = 1.7308 hours.\n</reasoning>\nFinal Answ...
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Simplify: 15/2 * 8/1" }, { "role": "assistant", "content": "<reasoning>\nMultiply: (15/2) × (8/1) = (120/2) = 60 after simplification.\n</reasoning>\nFinal Answer: 60" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "Given A = [2, 3, 11, 12] and B = [5, 6, 7, 8, 9, 17], find A symmetric diff B." }, { "role": "assistant", "content": "<reasoning>\nSymmetric difference contains elements in exactly one of the sets. Result = [2, 3, 5, 6, 7, 8, 9, 11, 12, 17].\n</reasoning>\nFinal Ans...
medium
[ "set_theory" ]
[ { "role": "user", "content": "Find the median of: [23, 57, 26, 27, 12]" }, { "role": "assistant", "content": "<reasoning>\nSorted: [12, 23, 26, 27, 57]. Middle value(s) → median = 26.\n</reasoning>\nFinal Answer: 26" } ]
medium
[ "statistics", "median" ]
[ { "role": "user", "content": "Given A = [9, 10, 12, 14, 17] and B = [12, 17, 18], find A symmetric diff B." }, { "role": "assistant", "content": "<reasoning>\nSymmetric difference contains elements in exactly one of the sets. Result = [9, 10, 14, 18].\n</reasoning>\nFinal Answer: [9, 10, 14, 18]...
medium
[ "set_theory" ]
[ { "role": "user", "content": "449 is what percentage of 998?" }, { "role": "assistant", "content": "<reasoning>\n(449/998) × 100 = 44.99%.\n</reasoning>\nFinal Answer: 44.99%" } ]
medium
[ "percentage", "ratio" ]
[ { "role": "user", "content": "Solve for x: 22x + 21 = 593" }, { "role": "assistant", "content": "<reasoning>\nSubtract 21 from both sides: 22x = 572. Divide by 22: x = 26.\n</reasoning>\nFinal Answer: 26" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "21 is what percentage of 201?" }, { "role": "assistant", "content": "<reasoning>\n(21/201) × 100 = 10.4478%.\n</reasoning>\nFinal Answer: 10.4478%" } ]
medium
[ "percentage", "ratio" ]
[ { "role": "user", "content": "Decrease 150 by 10%." }, { "role": "assistant", "content": "<reasoning>\nDecrease by 10%: 150 × (1 - 10/100) = 150 × 0.9 = 135.0.\n</reasoning>\nFinal Answer: 135.0" } ]
easy
[ "percentage", "arithmetic" ]
[ { "role": "user", "content": "Calculate: -527 ÷ 354" }, { "role": "assistant", "content": "<reasoning>\nDivide -527 by 354. -527 ÷ 354 = -2 (integer division).\n</reasoning>\nFinal Answer: -2" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Simplify: 12/11 * 15/8" }, { "role": "assistant", "content": "<reasoning>\nMultiply: (12/11) × (15/8) = (180/88) = 45/22 after simplification.\n</reasoning>\nFinal Answer: 45/22" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "A train travels at 157 km/h. How far does it travel in 5 hours and 42 minutes?" }, { "role": "assistant", "content": "<reasoning>\nTime = 5 + 42/60 = 5.7000 hours. Distance = speed × time = 157 × 5.7000 = 894.9 km.\n</reasoning>\nFinal Answer: 894.9" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Evaluate using order of operations: 8 + 23 * 34 - 50" }, { "role": "assistant", "content": "<reasoning>\nBODMAS: multiply first: 23×34=782, then 8+782-50=740.\n</reasoning>\nFinal Answer: 740" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "In an arithmetic progression with first term 49 and common difference 3, find the 15th term." }, { "role": "assistant", "content": "<reasoning>\nnth term = a + (n-1)d = 49 + (15-1)×3 = 49 + 42 = 91.\n</reasoning>\nFinal Answer: 91" } ]
medium
[ "sequences", "arithmetic_progression" ]
[ { "role": "user", "content": "Calculate: -495 + -739" }, { "role": "assistant", "content": "<reasoning>\nAdd -495 and -739: -495 + -739 = -1234.\n</reasoning>\nFinal Answer: -1234" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Find the range of: [71, 91, 74, 4, 51, 56, 92, 71]" }, { "role": "assistant", "content": "<reasoning>\nRange = max - min = 92 - 4 = 88.\n</reasoning>\nFinal Answer: 88" } ]
easy
[ "statistics", "range" ]
[ { "role": "user", "content": "Solve for x: 15x + 39 = -411" }, { "role": "assistant", "content": "<reasoning>\nSubtract 39 from both sides: 15x = -450. Divide by 15: x = -30.\n</reasoning>\nFinal Answer: -30" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Increase 607 by 75%." }, { "role": "assistant", "content": "<reasoning>\nIncrease by 75%: 607 × (1 + 75/100) = 607 × 1.75 = 1062.25.\n</reasoning>\nFinal Answer: 1062.25" } ]
easy
[ "percentage", "arithmetic" ]
[ { "role": "user", "content": "Solve for x: 13x + 22 = 256" }, { "role": "assistant", "content": "<reasoning>\nSubtract 22 from both sides: 13x = 234. Divide by 13: x = 18.\n</reasoning>\nFinal Answer: 18" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "If the ratio of A to B is 35:5 and A = 100, find B." }, { "role": "assistant", "content": "<reasoning>\nA/B = 35/5, so B = A × (5/35) = 100 × 5/35 = 14.2857.\n</reasoning>\nFinal Answer: 14.2857" } ]
medium
[ "ratio", "proportion" ]
[ { "role": "user", "content": "Find the area of a trapezoid with parallel sides 13, 20 and height 17." }, { "role": "assistant", "content": "<reasoning>\nArea = (1/2) × (a + b) × h = 0.5 × (13+20) × 17 = 280.5.\n</reasoning>\nFinal Answer: 280.5" } ]
medium
[ "geometry", "area" ]
[ { "role": "user", "content": "Find the LCM (Least Common Multiple) of 50 and 8." }, { "role": "assistant", "content": "<reasoning>\nLCM = (a×b)/GCD = (50×8)/2 = 200.\n</reasoning>\nFinal Answer: 200" } ]
medium
[ "number_theory", "lcm" ]
[ { "role": "user", "content": "Simplify: 10/6 / 4/15" }, { "role": "assistant", "content": "<reasoning>\nDivide: (10/6) ÷ (4/15) = (10/6) × (15/4) = 25/4.\n</reasoning>\nFinal Answer: 25/4" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "Solve for x: 7x + -28 = 196" }, { "role": "assistant", "content": "<reasoning>\nSubtract -28 from both sides: 7x = 224. Divide by 7: x = 32.\n</reasoning>\nFinal Answer: 32" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Solve for x: 12x + 7 = -149" }, { "role": "assistant", "content": "<reasoning>\nSubtract 7 from both sides: 12x = -156. Divide by 12: x = -13.\n</reasoning>\nFinal Answer: -13" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Calculate: 282 × -17" }, { "role": "assistant", "content": "<reasoning>\nMultiply 282 by -17: 282 × -17 = -4794.\n</reasoning>\nFinal Answer: -4794" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Is 29 a prime number? Answer Yes or No." }, { "role": "assistant", "content": "<reasoning>\n29 has no divisors other than 1 and itself, so it is prime.\n</reasoning>\nFinal Answer: Yes" } ]
easy
[ "number_theory", "prime" ]
[ { "role": "user", "content": "Evaluate using order of operations: 5 + 10 ** 2 - 42" }, { "role": "assistant", "content": "<reasoning>\nExponent first: 10²=100, then 5+100-42=63.\n</reasoning>\nFinal Answer: 63" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Ravi has 68 apples and buys 23 more. How many apples does he have now?" }, { "role": "assistant", "content": "<reasoning>\nTotal = 68 + 23 = 91.\n</reasoning>\nFinal Answer: 91" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Solve for x: 7x + -28 = -49" }, { "role": "assistant", "content": "<reasoning>\nSubtract -28 from both sides: 7x = -21. Divide by 7: x = -3.\n</reasoning>\nFinal Answer: -3" } ]
easy
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Simplify: 18/14 - 9/15" }, { "role": "assistant", "content": "<reasoning>\nSubtract fractions: 18/14 - 9/15. LCD = 35. Result = 24/35.\n</reasoning>\nFinal Answer: 24/35" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "Find the median of: [65, 92, 34, 12, 65, 64, 6, 8, 49]" }, { "role": "assistant", "content": "<reasoning>\nSorted: [6, 8, 12, 34, 49, 64, 65, 65, 92]. Middle value(s) → median = 49.\n</reasoning>\nFinal Answer: 49" } ]
medium
[ "statistics", "median" ]
[ { "role": "user", "content": "What is 100% of 835?" }, { "role": "assistant", "content": "<reasoning>\n100% of 835 = (100/100) × 835 = 835.0.\n</reasoning>\nFinal Answer: 835.0" } ]
easy
[ "percentage", "arithmetic" ]
[ { "role": "user", "content": "4 workers can complete a job in 18 days. How many days will 18 workers take?" }, { "role": "assistant", "content": "<reasoning>\nTotal work = 4 × 18 = 72 worker-days. New time = 72 / 18 = 4.0 days.\n</reasoning>\nFinal Answer: 4.0" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "If the ratio of A to B is 31:24 and A = 88, find B." }, { "role": "assistant", "content": "<reasoning>\nA/B = 31/24, so B = A × (24/31) = 88 × 24/31 = 68.129.\n</reasoning>\nFinal Answer: 68.129" } ]
medium
[ "ratio", "proportion" ]
[ { "role": "user", "content": "Calculate simple interest on a principal of ₹13209 at 17% per annum for 5 years." }, { "role": "assistant", "content": "<reasoning>\nSI = P × R × T / 100 = 13209 × 17 × 5 / 100 = 11227.65.\n</reasoning>\nFinal Answer: 11227.65" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Solve for x: 16x + 34 = -174" }, { "role": "assistant", "content": "<reasoning>\nSubtract 34 from both sides: 16x = -208. Divide by 16: x = -13.\n</reasoning>\nFinal Answer: -13" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Calculate: -546 ÷ -310" }, { "role": "assistant", "content": "<reasoning>\nDivide -546 by -310. -546 ÷ -310 = 1 (integer division).\n</reasoning>\nFinal Answer: 1" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Simplify: 11/3 - 15/18" }, { "role": "assistant", "content": "<reasoning>\nSubtract fractions: 11/3 - 15/18. LCD = 6. Result = 17/6.\n</reasoning>\nFinal Answer: 17/6" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "In an arithmetic progression with first term 32 and common difference 2, find the 13th term." }, { "role": "assistant", "content": "<reasoning>\nnth term = a + (n-1)d = 32 + (13-1)×2 = 32 + 24 = 56.\n</reasoning>\nFinal Answer: 56" } ]
medium
[ "sequences", "arithmetic_progression" ]
[ { "role": "user", "content": "Find the area of a rectangle with length 61 and width 19." }, { "role": "assistant", "content": "<reasoning>\nArea = length × width = 61 × 19 = 1159.\n</reasoning>\nFinal Answer: 1159" } ]
easy
[ "geometry", "area" ]
[ { "role": "user", "content": "Solve for x: 16x + 49 = -591" }, { "role": "assistant", "content": "<reasoning>\nSubtract 49 from both sides: 16x = -640. Divide by 16: x = -40.\n</reasoning>\nFinal Answer: -40" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "An item costs ₹2736. If sales tax is 18%, what is the total price?" }, { "role": "assistant", "content": "<reasoning>\nTax amount = 2736 × 18/100 = 492.48. Total = 2736 + 492.48 = 3228.48.\n</reasoning>\nFinal Answer: 3228.48" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Given A = [8, 9, 16, 19] and B = [1, 2, 4, 11, 14, 17, 19], find A union B." }, { "role": "assistant", "content": "<reasoning>\nUnion includes all elements from both sets. Result = [1, 2, 4, 8, 9, 11, 14, 16, 17, 19].\n</reasoning>\nFinal Answer: [1, 2, 4, 8, 9, 11,...
medium
[ "set_theory" ]
[ { "role": "user", "content": "Find the area of a parallelogram with base 65 and height 5." }, { "role": "assistant", "content": "<reasoning>\nArea = base × height = 65 × 5 = 325.\n</reasoning>\nFinal Answer: 325" } ]
easy
[ "geometry", "area" ]
[ { "role": "user", "content": "Find the perimeter of a rectangle with length 62 and width 3." }, { "role": "assistant", "content": "<reasoning>\nPerimeter = 2(l + w) = 2(62+3) = 2×65 = 130.\n</reasoning>\nFinal Answer: 130" } ]
easy
[ "geometry", "perimeter" ]
[ { "role": "user", "content": "Calculate: 625 - -922" }, { "role": "assistant", "content": "<reasoning>\nSubtract -922 from 625: 625 - -922 = 1547.\n</reasoning>\nFinal Answer: 1547" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Simplify: 19/7 - 16/12" }, { "role": "assistant", "content": "<reasoning>\nSubtract fractions: 19/7 - 16/12. LCD = 21. Result = 29/21.\n</reasoning>\nFinal Answer: 29/21" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "Simplify: 5/19 / 12/20" }, { "role": "assistant", "content": "<reasoning>\nDivide: (5/19) ÷ (12/20) = (5/19) × (20/12) = 25/57.\n</reasoning>\nFinal Answer: 25/57" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "Calculate: -369 × -648" }, { "role": "assistant", "content": "<reasoning>\nMultiply -369 by -648: -369 × -648 = 239112.\n</reasoning>\nFinal Answer: 239112" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Calculate: 232 - 755" }, { "role": "assistant", "content": "<reasoning>\nSubtract 755 from 232: 232 - 755 = -523.\n</reasoning>\nFinal Answer: -523" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Find the GCD (Greatest Common Divisor) of 164 and 117." }, { "role": "assistant", "content": "<reasoning>\nUsing Euclidean algorithm: GCD(164,117) = 1.\n</reasoning>\nFinal Answer: 1" } ]
medium
[ "number_theory", "gcd" ]
[ { "role": "user", "content": "Evaluate using order of operations: 43 * 37 + 17 * 46" }, { "role": "assistant", "content": "<reasoning>\nMultiply first: 43×37=1591 and 17×46=782, then add: 2373.\n</reasoning>\nFinal Answer: 2373" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Find the area of a trapezoid with parallel sides 49, 50 and height 27." }, { "role": "assistant", "content": "<reasoning>\nArea = (1/2) × (a + b) × h = 0.5 × (49+50) × 27 = 1336.5.\n</reasoning>\nFinal Answer: 1336.5" } ]
medium
[ "geometry", "area" ]
[ { "role": "user", "content": "An item costs ₹1190. If sales tax is 5%, what is the total price?" }, { "role": "assistant", "content": "<reasoning>\nTax amount = 1190 × 5/100 = 59.5. Total = 1190 + 59.5 = 1249.5.\n</reasoning>\nFinal Answer: 1249.5" } ]
medium
[ "word_problem", "applied_math" ]