You are given a math word problem and you are supposed to make use of mathematical concepts like probability, combinatorics, linear equations, sequences/series, or simple operators like addition, subtraction, division, or multiplication to answer the given question. Choose the best option from the 5 given options and report that option.
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Question: Question: In a class of 40 students, 10 did not opt for math. 15 did not opt for science and 2 did not opt for either. How many students of the class opted for both math and science?

 Option A: 13

 Option B: 15

 Option C: 7

 Option D: 17

 Option E: 18

Answer: Option C


Question: Question: A batsman scored 90 runs which included 2 boundaries and 7 sixes. What percent of his total score did he make by running between the wickets.

 Option A: 30%

 Option B: 40%

 Option C: 44.44%

 Option D: 60%

 Option E: 80%

Answer: Option C


Question: Question: The averge score of a cricketer for ten matches is 35 runs. If the average for the first six matches is 23. Then find the average for the last four matches?

 Option A: 58

 Option B: 53

 Option C: 64.25

 Option D: 55

 Option E: 57

Answer:
Option B