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

[EX Q]: Problem: what is the total number of integers between 10 and 50 that are divisible by 2 ?
[EX A]: 19

[EX Q]: Problem: what is the dividend . divisor 13 , the quotient is 17 and the remainder is 1
[EX A]: 222

[EX Q]: Problem: john has 10 pairs of matched socks . if he loses 13 individual socks , what is the greatest number of pairs of matched socks he can have left ?
[EX A]:
3