messages
listlengths
2
2
difficulty
stringclasses
3 values
tags
listlengths
1
3
[ { "role": "user", "content": "Solve for x: 5x + 9 = 154" }, { "role": "assistant", "content": "<reasoning>\nSubtract 9 from both sides: 5x = 145. Divide by 5: x = 29.\n</reasoning>\nFinal Answer: 29" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Calculate: -188 + -318" }, { "role": "assistant", "content": "<reasoning>\nAdd -188 and -318: -188 + -318 = -506.\n</reasoning>\nFinal Answer: -506" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Find the GCD (Greatest Common Divisor) of 82 and 136." }, { "role": "assistant", "content": "<reasoning>\nUsing Euclidean algorithm: GCD(82,136) = 2.\n</reasoning>\nFinal Answer: 2" } ]
medium
[ "number_theory", "gcd" ]
[ { "role": "user", "content": "Decrease 386 by 3%." }, { "role": "assistant", "content": "<reasoning>\nDecrease by 3%: 386 × (1 - 3/100) = 386 × 0.97 = 374.42.\n</reasoning>\nFinal Answer: 374.42" } ]
easy
[ "percentage", "arithmetic" ]
[ { "role": "user", "content": "If the ratio of A to B is 4:21 and A = 40, find B." }, { "role": "assistant", "content": "<reasoning>\nA/B = 4/21, so B = A × (21/4) = 40 × 21/4 = 210.0.\n</reasoning>\nFinal Answer: 210.0" } ]
medium
[ "ratio", "proportion" ]
[ { "role": "user", "content": "Calculate: -496 × -930" }, { "role": "assistant", "content": "<reasoning>\nMultiply -496 by -930: -496 × -930 = 461280.\n</reasoning>\nFinal Answer: 461280" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Find the area of a triangle with base 95 and height 40." }, { "role": "assistant", "content": "<reasoning>\nArea = (1/2) × base × height = 0.5 × 95 × 40 = 1900.0.\n</reasoning>\nFinal Answer: 1900.0" } ]
easy
[ "geometry", "area" ]
[ { "role": "user", "content": "Solve for x: 16x + 35 = -525" }, { "role": "assistant", "content": "<reasoning>\nSubtract 35 from both sides: 16x = -560. Divide by 16: x = -35.\n</reasoning>\nFinal Answer: -35" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Find the next term in the sequence: [28, 36, 44, 52, 60]" }, { "role": "assistant", "content": "<reasoning>\nThis is an arithmetic sequence with first term 28 and common difference 8. Next term = 60 + 8 = 68.\n</reasoning>\nFinal Answer: 68" } ]
medium
[ "sequences", "arithmetic_progression" ]
[ { "role": "user", "content": "Ravi has 45 apples and buys 45 more. How many apples does he have now?" }, { "role": "assistant", "content": "<reasoning>\nTotal = 45 + 45 = 90.\n</reasoning>\nFinal Answer: 90" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Calculate: -345 - -280" }, { "role": "assistant", "content": "<reasoning>\nSubtract -280 from -345: -345 - -280 = -65.\n</reasoning>\nFinal Answer: -65" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Find the median of: [2, 71, 79, 10, 76, 47, 26, 9]" }, { "role": "assistant", "content": "<reasoning>\nSorted: [2, 9, 10, 26, 47, 71, 76, 79]. Middle value(s) → median = 36.5.\n</reasoning>\nFinal Answer: 36.5" } ]
medium
[ "statistics", "median" ]
[ { "role": "user", "content": "Solve for x: 18x + -35 = 19" }, { "role": "assistant", "content": "<reasoning>\nSubtract -35 from both sides: 18x = 54. Divide by 18: x = 3.\n</reasoning>\nFinal Answer: 3" } ]
easy
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Solve for x: 14x + 42 = 294" }, { "role": "assistant", "content": "<reasoning>\nSubtract 42 from both sides: 14x = 252. Divide by 14: x = 18.\n</reasoning>\nFinal Answer: 18" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "In an arithmetic progression with first term 48 and common difference 12, find the 23th term." }, { "role": "assistant", "content": "<reasoning>\nnth term = a + (n-1)d = 48 + (23-1)×12 = 48 + 264 = 312.\n</reasoning>\nFinal Answer: 312" } ]
medium
[ "sequences", "arithmetic_progression" ]
[ { "role": "user", "content": "Calculate: -268 × -56" }, { "role": "assistant", "content": "<reasoning>\nMultiply -268 by -56: -268 × -56 = 15008.\n</reasoning>\nFinal Answer: 15008" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Calculate: -216 mod 484" }, { "role": "assistant", "content": "<reasoning>\n-216 mod 484: -216 = 484 × -1 + 268, so remainder = 268.\n</reasoning>\nFinal Answer: 268" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "If the ratio of A to B is 26:33 and A = 83, find B." }, { "role": "assistant", "content": "<reasoning>\nA/B = 26/33, so B = A × (33/26) = 83 × 33/26 = 105.3462.\n</reasoning>\nFinal Answer: 105.3462" } ]
medium
[ "ratio", "proportion" ]
[ { "role": "user", "content": "If the ratio of A to B is 9:49 and A = 38, find B." }, { "role": "assistant", "content": "<reasoning>\nA/B = 9/49, so B = A × (49/9) = 38 × 49/9 = 206.8889.\n</reasoning>\nFinal Answer: 206.8889" } ]
medium
[ "ratio", "proportion" ]
[ { "role": "user", "content": "In an arithmetic progression with first term 26 and common difference 15, find the 47th term." }, { "role": "assistant", "content": "<reasoning>\nnth term = a + (n-1)d = 26 + (47-1)×15 = 26 + 690 = 716.\n</reasoning>\nFinal Answer: 716" } ]
medium
[ "sequences", "arithmetic_progression" ]
[ { "role": "user", "content": "Evaluate using order of operations: (48 + 38) * (21 - 11)" }, { "role": "assistant", "content": "<reasoning>\nBrackets first: (48+38)=86, (21-11)=10, then 86×10=860.\n</reasoning>\nFinal Answer: 860" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Simplify: 16/6 * 16/15" }, { "role": "assistant", "content": "<reasoning>\nMultiply: (16/6) × (16/15) = (256/90) = 128/45 after simplification.\n</reasoning>\nFinal Answer: 128/45" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "An item costs ₹2674. If sales tax is 12%, what is the total price?" }, { "role": "assistant", "content": "<reasoning>\nTax amount = 2674 × 12/100 = 320.88. Total = 2674 + 320.88 = 2994.88.\n</reasoning>\nFinal Answer: 2994.88" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Find the range of: [28, 33, 1, 26, 97, 81, 26, 34, 73, 95]" }, { "role": "assistant", "content": "<reasoning>\nRange = max - min = 97 - 1 = 96.\n</reasoning>\nFinal Answer: 96" } ]
easy
[ "statistics", "range" ]
[ { "role": "user", "content": "Solve for x: 13x + -9 = 199" }, { "role": "assistant", "content": "<reasoning>\nSubtract -9 from both sides: 13x = 208. Divide by 13: x = 16.\n</reasoning>\nFinal Answer: 16" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Calculate: 980 × -700" }, { "role": "assistant", "content": "<reasoning>\nMultiply 980 by -700: 980 × -700 = -686000.\n</reasoning>\nFinal Answer: -686000" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Evaluate using order of operations: 13 * 21 + 25 * 27" }, { "role": "assistant", "content": "<reasoning>\nMultiply first: 13×21=273 and 25×27=675, then add: 948.\n</reasoning>\nFinal Answer: 948" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "In an arithmetic progression with first term 33 and common difference 14, find the 31th term." }, { "role": "assistant", "content": "<reasoning>\nnth term = a + (n-1)d = 33 + (31-1)×14 = 33 + 420 = 453.\n</reasoning>\nFinal Answer: 453" } ]
medium
[ "sequences", "arithmetic_progression" ]
[ { "role": "user", "content": "Evaluate using order of operations: 28 * 26 + 13 * 35" }, { "role": "assistant", "content": "<reasoning>\nMultiply first: 28×26=728 and 13×35=455, then add: 1183.\n</reasoning>\nFinal Answer: 1183" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "If the ratio of A to B is 38:31 and A = 53, find B." }, { "role": "assistant", "content": "<reasoning>\nA/B = 38/31, so B = A × (31/38) = 53 × 31/38 = 43.2368.\n</reasoning>\nFinal Answer: 43.2368" } ]
medium
[ "ratio", "proportion" ]
[ { "role": "user", "content": "Solve for x: 9x + 21 = -348" }, { "role": "assistant", "content": "<reasoning>\nSubtract 21 from both sides: 9x = -369. Divide by 9: x = -41.\n</reasoning>\nFinal Answer: -41" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Two trains start towards each other from stations 329 km apart. Their speeds are 120 km/h and 105 km/h. When will they meet?" }, { "role": "assistant", "content": "<reasoning>\nCombined speed = 120+105=225 km/h. Time = 329/225 = 1.4622 hours.\n</reasoning>\nFinal An...
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Find the area of a parallelogram with base 47 and height 23." }, { "role": "assistant", "content": "<reasoning>\nArea = base × height = 47 × 23 = 1081.\n</reasoning>\nFinal Answer: 1081" } ]
easy
[ "geometry", "area" ]
[ { "role": "user", "content": "Find the mode of: [73, 79, 89, 20, 75, 54, 1, 52, 93, 20]" }, { "role": "assistant", "content": "<reasoning>\nCount frequencies: {73: 1, 79: 1, 89: 1, 20: 2, 75: 1, 54: 1, 1: 1, 52: 1, 93: 1}. Most frequent: 20.\n</reasoning>\nFinal Answer: 20" } ]
easy
[ "statistics", "mode" ]
[ { "role": "user", "content": "18 workers can complete a job in 10 days. How many days will 3 workers take?" }, { "role": "assistant", "content": "<reasoning>\nTotal work = 18 × 10 = 180 worker-days. New time = 180 / 3 = 60.0 days.\n</reasoning>\nFinal Answer: 60.0" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Simplify: 5/1 - 16/13" }, { "role": "assistant", "content": "<reasoning>\nSubtract fractions: 5/1 - 16/13. LCD = 13. Result = 49/13.\n</reasoning>\nFinal Answer: 49/13" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "Evaluate using order of operations: 12 + 1 ** 2 - 15" }, { "role": "assistant", "content": "<reasoning>\nExponent first: 1²=1, then 12+1-15=-2.\n</reasoning>\nFinal Answer: -2" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Evaluate using order of operations: (47 + 40) * (39 - 49)" }, { "role": "assistant", "content": "<reasoning>\nBrackets first: (47+40)=87, (39-49)=-10, then 87×-10=-870.\n</reasoning>\nFinal Answer: -870" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Solve for x: 8x + -24 = 64" }, { "role": "assistant", "content": "<reasoning>\nSubtract -24 from both sides: 8x = 88. Divide by 8: x = 11.\n</reasoning>\nFinal Answer: 11" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "261 is what percentage of 859?" }, { "role": "assistant", "content": "<reasoning>\n(261/859) × 100 = 30.3842%.\n</reasoning>\nFinal Answer: 30.3842%" } ]
medium
[ "percentage", "ratio" ]
[ { "role": "user", "content": "244 is what percentage of 776?" }, { "role": "assistant", "content": "<reasoning>\n(244/776) × 100 = 31.4433%.\n</reasoning>\nFinal Answer: 31.4433%" } ]
medium
[ "percentage", "ratio" ]
[ { "role": "user", "content": "Solve for x: 24x + -40 = 704" }, { "role": "assistant", "content": "<reasoning>\nSubtract -40 from both sides: 24x = 744. Divide by 24: x = 31.\n</reasoning>\nFinal Answer: 31" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Find the median of: [26, 71, 44, 80, 8, 3, 8, 34]" }, { "role": "assistant", "content": "<reasoning>\nSorted: [3, 8, 8, 26, 34, 44, 71, 80]. Middle value(s) → median = 30.0.\n</reasoning>\nFinal Answer: 30.0" } ]
medium
[ "statistics", "median" ]
[ { "role": "user", "content": "Find the median of: [81, 56, 28, 7, 36, 40, 60, 71, 32, 30]" }, { "role": "assistant", "content": "<reasoning>\nSorted: [7, 28, 30, 32, 36, 40, 56, 60, 71, 81]. Middle value(s) → median = 38.0.\n</reasoning>\nFinal Answer: 38.0" } ]
medium
[ "statistics", "median" ]
[ { "role": "user", "content": "Solve for x: 1x + -22 = -59" }, { "role": "assistant", "content": "<reasoning>\nSubtract -22 from both sides: 1x = -37. Divide by 1: x = -37.\n</reasoning>\nFinal Answer: -37" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Simplify: 14/6 + 11/2" }, { "role": "assistant", "content": "<reasoning>\nAdd fractions: 14/6 + 11/2. Common denominator = 6. Result = 47/6.\n</reasoning>\nFinal Answer: 47/6" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "In an arithmetic progression with first term 26 and common difference 10, find the 41th term." }, { "role": "assistant", "content": "<reasoning>\nnth term = a + (n-1)d = 26 + (41-1)×10 = 26 + 400 = 426.\n</reasoning>\nFinal Answer: 426" } ]
medium
[ "sequences", "arithmetic_progression" ]
[ { "role": "user", "content": "If the ratio of A to B is 2:30 and A = 22, find B." }, { "role": "assistant", "content": "<reasoning>\nA/B = 2/30, so B = A × (30/2) = 22 × 30/2 = 330.0.\n</reasoning>\nFinal Answer: 330.0" } ]
medium
[ "ratio", "proportion" ]
[ { "role": "user", "content": "6 workers can complete a job in 23 days. How many days will 14 workers take?" }, { "role": "assistant", "content": "<reasoning>\nTotal work = 6 × 23 = 138 worker-days. New time = 138 / 14 = 9.8571 days.\n</reasoning>\nFinal Answer: 9.8571" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "In an arithmetic progression with first term 40 and common difference 3, find the 41th term." }, { "role": "assistant", "content": "<reasoning>\nnth term = a + (n-1)d = 40 + (41-1)×3 = 40 + 120 = 160.\n</reasoning>\nFinal Answer: 160" } ]
medium
[ "sequences", "arithmetic_progression" ]
[ { "role": "user", "content": "Calculate: 99 - -56" }, { "role": "assistant", "content": "<reasoning>\nSubtract -56 from 99: 99 - -56 = 155.\n</reasoning>\nFinal Answer: 155" } ]
easy
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Calculate: -211 + -877" }, { "role": "assistant", "content": "<reasoning>\nAdd -211 and -877: -211 + -877 = -1088.\n</reasoning>\nFinal Answer: -1088" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Calculate: 670 × -642" }, { "role": "assistant", "content": "<reasoning>\nMultiply 670 by -642: 670 × -642 = -430140.\n</reasoning>\nFinal Answer: -430140" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Find the LCM (Least Common Multiple) of 7 and 41." }, { "role": "assistant", "content": "<reasoning>\nLCM = (a×b)/GCD = (7×41)/1 = 287.\n</reasoning>\nFinal Answer: 287" } ]
medium
[ "number_theory", "lcm" ]
[ { "role": "user", "content": "Solve for x: 19x + 23 = -642" }, { "role": "assistant", "content": "<reasoning>\nSubtract 23 from both sides: 19x = -665. Divide by 19: x = -35.\n</reasoning>\nFinal Answer: -35" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Solve for x: 14x + 11 = -283" }, { "role": "assistant", "content": "<reasoning>\nSubtract 11 from both sides: 14x = -294. Divide by 14: x = -21.\n</reasoning>\nFinal Answer: -21" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "5 workers can complete a job in 20 days. How many days will 18 workers take?" }, { "role": "assistant", "content": "<reasoning>\nTotal work = 5 × 20 = 100 worker-days. New time = 100 / 18 = 5.5556 days.\n</reasoning>\nFinal Answer: 5.5556" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Evaluate using order of operations: 9 + 19 * 25 - 4" }, { "role": "assistant", "content": "<reasoning>\nBODMAS: multiply first: 19×25=475, then 9+475-4=480.\n</reasoning>\nFinal Answer: 480" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Calculate: -639 - -77" }, { "role": "assistant", "content": "<reasoning>\nSubtract -77 from -639: -639 - -77 = -562.\n</reasoning>\nFinal Answer: -562" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Calculate: -219 - -82" }, { "role": "assistant", "content": "<reasoning>\nSubtract -82 from -219: -219 - -82 = -137.\n</reasoning>\nFinal Answer: -137" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Calculate: 387 - -641" }, { "role": "assistant", "content": "<reasoning>\nSubtract -641 from 387: 387 - -641 = 1028.\n</reasoning>\nFinal Answer: 1028" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Simplify: 12/6 + 11/13" }, { "role": "assistant", "content": "<reasoning>\nAdd fractions: 12/6 + 11/13. Common denominator = 13. Result = 37/13.\n</reasoning>\nFinal Answer: 37/13" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "Evaluate using order of operations: (2 + 41) * (28 - 49)" }, { "role": "assistant", "content": "<reasoning>\nBrackets first: (2+41)=43, (28-49)=-21, then 43×-21=-903.\n</reasoning>\nFinal Answer: -903" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "If the ratio of A to B is 38:38 and A = 82, find B." }, { "role": "assistant", "content": "<reasoning>\nA/B = 38/38, so B = A × (38/38) = 82 × 38/38 = 82.0.\n</reasoning>\nFinal Answer: 82.0" } ]
medium
[ "ratio", "proportion" ]
[ { "role": "user", "content": "Increase 746 by 40%." }, { "role": "assistant", "content": "<reasoning>\nIncrease by 40%: 746 × (1 + 40/100) = 746 × 1.4 = 1044.4.\n</reasoning>\nFinal Answer: 1044.4" } ]
easy
[ "percentage", "arithmetic" ]
[ { "role": "user", "content": "Calculate: -43 - -895" }, { "role": "assistant", "content": "<reasoning>\nSubtract -895 from -43: -43 - -895 = 852.\n</reasoning>\nFinal Answer: 852" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Solve for x: 19x + 10 = 941" }, { "role": "assistant", "content": "<reasoning>\nSubtract 10 from both sides: 19x = 931. Divide by 19: x = 49.\n</reasoning>\nFinal Answer: 49" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Two trains start towards each other from stations 259 km apart. Their speeds are 107 km/h and 87 km/h. When will they meet?" }, { "role": "assistant", "content": "<reasoning>\nCombined speed = 107+87=194 km/h. Time = 259/194 = 1.3351 hours.\n</reasoning>\nFinal Answ...
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Find the range of: [96, 25, 98, 77, 11]" }, { "role": "assistant", "content": "<reasoning>\nRange = max - min = 98 - 11 = 87.\n</reasoning>\nFinal Answer: 87" } ]
easy
[ "statistics", "range" ]
[ { "role": "user", "content": "Evaluate using order of operations: 8 * 8 + 17 * 28" }, { "role": "assistant", "content": "<reasoning>\nMultiply first: 8×8=64 and 17×28=476, then add: 540.\n</reasoning>\nFinal Answer: 540" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Simplify: 1/14 + 2/14" }, { "role": "assistant", "content": "<reasoning>\nAdd fractions: 1/14 + 2/14. Common denominator = 14. Result = 3/14.\n</reasoning>\nFinal Answer: 3/14" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "Find the mean of: [83, 73, 89, 47, 61, 79, 31]" }, { "role": "assistant", "content": "<reasoning>\nMean = sum/count = 463/7 = 66.1429.\n</reasoning>\nFinal Answer: 66.1429" } ]
easy
[ "statistics", "mean" ]
[ { "role": "user", "content": "49 is what percentage of 675?" }, { "role": "assistant", "content": "<reasoning>\n(49/675) × 100 = 7.2593%.\n</reasoning>\nFinal Answer: 7.2593%" } ]
medium
[ "percentage", "ratio" ]
[ { "role": "user", "content": "Calculate: 82 + 327" }, { "role": "assistant", "content": "<reasoning>\nAdd 82 and 327: 82 + 327 = 409.\n</reasoning>\nFinal Answer: 409" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Find the area of a trapezoid with parallel sides 11, 50 and height 14." }, { "role": "assistant", "content": "<reasoning>\nArea = (1/2) × (a + b) × h = 0.5 × (11+50) × 14 = 427.0.\n</reasoning>\nFinal Answer: 427.0" } ]
medium
[ "geometry", "area" ]
[ { "role": "user", "content": "Calculate: 288 × -942" }, { "role": "assistant", "content": "<reasoning>\nMultiply 288 by -942: 288 × -942 = -271296.\n</reasoning>\nFinal Answer: -271296" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Calculate simple interest on a principal of ₹21111 at 6% per annum for 5 years." }, { "role": "assistant", "content": "<reasoning>\nSI = P × R × T / 100 = 21111 × 6 × 5 / 100 = 6333.3.\n</reasoning>\nFinal Answer: 6333.3" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "Calculate: -16 - 727" }, { "role": "assistant", "content": "<reasoning>\nSubtract 727 from -16: -16 - 727 = -743.\n</reasoning>\nFinal Answer: -743" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Simplify: 16/7 - 1/15" }, { "role": "assistant", "content": "<reasoning>\nSubtract fractions: 16/7 - 1/15. LCD = 105. Result = 233/105.\n</reasoning>\nFinal Answer: 233/105" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "Two trains start towards each other from stations 659 km apart. Their speeds are 57 km/h and 71 km/h. When will they meet?" }, { "role": "assistant", "content": "<reasoning>\nCombined speed = 57+71=128 km/h. Time = 659/128 = 5.1484 hours.\n</reasoning>\nFinal Answer...
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "If the ratio of A to B is 14:6 and A = 26, find B." }, { "role": "assistant", "content": "<reasoning>\nA/B = 14/6, so B = A × (6/14) = 26 × 6/14 = 11.1429.\n</reasoning>\nFinal Answer: 11.1429" } ]
medium
[ "ratio", "proportion" ]
[ { "role": "user", "content": "Simplify: 2/5 * 1/20" }, { "role": "assistant", "content": "<reasoning>\nMultiply: (2/5) × (1/20) = (2/100) = 1/50 after simplification.\n</reasoning>\nFinal Answer: 1/50" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "Simplify: 16/6 / 1/10" }, { "role": "assistant", "content": "<reasoning>\nDivide: (16/6) ÷ (1/10) = (16/6) × (10/1) = 80/3.\n</reasoning>\nFinal Answer: 80/3" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "Calculate simple interest on a principal of ₹21370 at 6% per annum for 4 years." }, { "role": "assistant", "content": "<reasoning>\nSI = P × R × T / 100 = 21370 × 6 × 4 / 100 = 5128.8.\n</reasoning>\nFinal Answer: 5128.8" } ]
medium
[ "word_problem", "applied_math" ]
[ { "role": "user", "content": "If the ratio of A to B is 44:11 and A = 78, find B." }, { "role": "assistant", "content": "<reasoning>\nA/B = 44/11, so B = A × (11/44) = 78 × 11/44 = 19.5.\n</reasoning>\nFinal Answer: 19.5" } ]
medium
[ "ratio", "proportion" ]
[ { "role": "user", "content": "Increase 469 by 5%." }, { "role": "assistant", "content": "<reasoning>\nIncrease by 5%: 469 × (1 + 5/100) = 469 × 1.05 = 492.45.\n</reasoning>\nFinal Answer: 492.45" } ]
easy
[ "percentage", "arithmetic" ]
[ { "role": "user", "content": "Simplify: 9/16 + 1/8" }, { "role": "assistant", "content": "<reasoning>\nAdd fractions: 9/16 + 1/8. Common denominator = 16. Result = 11/16.\n</reasoning>\nFinal Answer: 11/16" } ]
medium
[ "fractions", "arithmetic" ]
[ { "role": "user", "content": "Solve for x: 6x + -20 = 214" }, { "role": "assistant", "content": "<reasoning>\nSubtract -20 from both sides: 6x = 234. Divide by 6: x = 39.\n</reasoning>\nFinal Answer: 39" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "If the ratio of A to B is 4:21 and A = 24, find B." }, { "role": "assistant", "content": "<reasoning>\nA/B = 4/21, so B = A × (21/4) = 24 × 21/4 = 126.0.\n</reasoning>\nFinal Answer: 126.0" } ]
medium
[ "ratio", "proportion" ]
[ { "role": "user", "content": "Find the median of: [18, 72, 9, 31, 58, 11, 98, 49, 60, 56]" }, { "role": "assistant", "content": "<reasoning>\nSorted: [9, 11, 18, 31, 49, 56, 58, 60, 72, 98]. Middle value(s) → median = 52.5.\n</reasoning>\nFinal Answer: 52.5" } ]
medium
[ "statistics", "median" ]
[ { "role": "user", "content": "Find the area of a trapezoid with parallel sides 40, 4 and height 16." }, { "role": "assistant", "content": "<reasoning>\nArea = (1/2) × (a + b) × h = 0.5 × (40+4) × 16 = 352.0.\n</reasoning>\nFinal Answer: 352.0" } ]
medium
[ "geometry", "area" ]
[ { "role": "user", "content": "Evaluate using order of operations: 3 * 8 + 43 * 11" }, { "role": "assistant", "content": "<reasoning>\nMultiply first: 3×8=24 and 43×11=473, then add: 497.\n</reasoning>\nFinal Answer: 497" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Solve for x: 1x + 27 = 67" }, { "role": "assistant", "content": "<reasoning>\nSubtract 27 from both sides: 1x = 40. Divide by 1: x = 40.\n</reasoning>\nFinal Answer: 40" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Calculate: 676 ÷ -869" }, { "role": "assistant", "content": "<reasoning>\nDivide 676 by -869. 676 ÷ -869 = -1 (integer division).\n</reasoning>\nFinal Answer: -1" } ]
medium
[ "arithmetic", "computation" ]
[ { "role": "user", "content": "Find the area of a parallelogram with base 5 and height 10." }, { "role": "assistant", "content": "<reasoning>\nArea = base × height = 5 × 10 = 50.\n</reasoning>\nFinal Answer: 50" } ]
easy
[ "geometry", "area" ]
[ { "role": "user", "content": "Evaluate using order of operations: 47 + 26 * 39 - 12" }, { "role": "assistant", "content": "<reasoning>\nBODMAS: multiply first: 26×39=1014, then 47+1014-12=1049.\n</reasoning>\nFinal Answer: 1049" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Find the mode of: [82, 33, 10, 75, 96, 28]" }, { "role": "assistant", "content": "<reasoning>\nCount frequencies: {82: 1, 33: 1, 10: 1, 75: 1, 96: 1, 28: 1}. Most frequent: [82, 33, 10, 75, 96, 28].\n</reasoning>\nFinal Answer: [82, 33, 10, 75, 96, 28]" } ]
easy
[ "statistics", "mode" ]
[ { "role": "user", "content": "Solve for x: 23x + 22 = -484" }, { "role": "assistant", "content": "<reasoning>\nSubtract 22 from both sides: 23x = -506. Divide by 23: x = -22.\n</reasoning>\nFinal Answer: -22" } ]
medium
[ "algebra", "linear_equation" ]
[ { "role": "user", "content": "Evaluate using order of operations: 11 + 40 * 4 - 37" }, { "role": "assistant", "content": "<reasoning>\nBODMAS: multiply first: 40×4=160, then 11+160-37=134.\n</reasoning>\nFinal Answer: 134" } ]
medium
[ "bodmas", "order_of_operations" ]
[ { "role": "user", "content": "Simplify: 9/3 + 7/9" }, { "role": "assistant", "content": "<reasoning>\nAdd fractions: 9/3 + 7/9. Common denominator = 9. Result = 34/9.\n</reasoning>\nFinal Answer: 34/9" } ]
medium
[ "fractions", "arithmetic" ]