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.

[EX Q]: 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
[EX A]: Option B

[EX Q]: Question: If point A coordinates are (-7, -3) point B coordinates are (8 ,4 ) if C is along the line A-B so that AC = 1/2 CB. What are the coordinates of point C.

 Option A: (-2, - 2/3

 Option B: (2, -2/3

 Option C: (2/3, -2

 Option D: (0, 2

 Option E: (2, 2/3
[EX A]: Option A

[EX Q]: Question: Two cyclists are running on a circular track of 500m.They start from the same point A at the same time.If they meet for the first time at a point 100 m from A, which of the following could be the possible ratio of their speeds?

 Option A: 1:4

 Option B: 2:3

 Option C: 3:5

 Option D: 5:7

 Option E: 7:11
[EX A]:
Option A