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: A boy and a girl appear for an interview against 2 vacant posts in an office. The probability of the boy's selection is 1/5 and that of the girl's selection is 1/3. What is the probability that only 1 of them is selected?

Option A: 1/3

Option B: 2/5

Option C: 3/5

Option D: 4/7

Option E: 5/9

Answer: Option B

Question: Question: 3 buffaloes eat as much as 4 cows or 2 oxen. At a farm there are 15 buffaloes, 8 oxen and 24 cows. The fodder for these cattle is available for 24days. If 8 more cows & 9 more buffaloes are brought in, how long will the fodder last?

Option A: 8

Option B: 10

Option C: 12

Option D: 18

Option E: 20

Answer: Option D

Question: Question: A number consists of two digits whose sum is 11. If 27 is added to the number, then the digits change their places. What is the number ?

Option A: 47

Option B: 65

Option C: 83

Option D: 92

Option E: 95

Answer:
Option A