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

[EX Q]: Problem: 20 is subtracted from 80 % of a number , the result is 60 . find the number ?
[EX A]: 100

[EX Q]: Problem: find the least number must be subtracted from 105829 so that remaining no . is divisible by 21 ?
[EX A]: 10

[EX Q]: Problem: sowdharya had 90 currency notes in all , some of which are of rs 95 denomination and the remaining of rs 45 denomination . the total amount of all these currency notes was rs . 5000 . how much amount ( in rs ) did she have in the denomination of rs 45 ?
[EX A]:
71