The task is to generate the correct answer for a given math problem.

[EX Q]: Problem: a fair 2 sided coin is flipped 4 times . what is the probability that tails will be the result at least twice , but not more than 4 times ?
[EX A]: 5 / 8

[EX Q]: Problem: how many zeroes are there at the end of the number n , if n = 100 ! + 200 ! ?
[EX A]: 2

[EX Q]: Problem: find the average of first 4 multiples of 11 ?
[EX A]:
27.5