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 number when divided by 5 gives a number which is 8 more than the remainder obtained on dividing the same number by 34. Such a least possible number N is

 Option A: 74

 Option B: N=75

 Option C: N=175

 Option D: N=680

 Option E: 690
[EX A]: Option B

[EX Q]: Question: The average runs scored by a batsman in 20 matches is 40. In the next 10 matches the batsman scored an average of 20 runs. Find his average in all the 30 matches?

 Option A: 31

 Option B: 46

 Option C: 88

 Option D: 33.33

 Option E: 12
[EX A]: Option D

[EX Q]: Question: Difference of 2 numbers is 1660. If 7.5% of one number is 12.5% of the other number, find the 2 numbers?

 Option A: 125,150

 Option B: 5124,4515

 Option C: 4150,2490

 Option D: 3250,4510

 Option E: 1254,3210
[EX A]:
Option C