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

[EX Q]: Problem: for any positive integer n , the sum of the first n positive integers equals n ( n + 1 ) / 2 . what is the sum of odd all the integers between 10 and 100 ?
[EX A]: 2475

[EX Q]: Problem: the average of runs of a cricket player of 10 innings was 33 . how many runs must he make in his next innings so as to increase his average of runs by 4 ?
[EX A]: 77

[EX Q]: Problem: a baseball card decreased in value 40 % in its first year and 10 % in its second year . what was the total percent decrease of the card ' s value over the two years ?
[EX A]:
46 %