instruction:
The task is to generate the correct answer for a given math problem.
question:
Problem: find the least number must be subtracted from 62575 so that remaining number is divisible by 99 .
answer:
7

question:
Problem: in a group of 150 readers who read science fiction or literacy works or both , 120 read science fiction and 90 read literacy works . how many read both science fiction and literacy works ?
answer:
60

question:
Problem: when 242 is divided by a certain divisor the remainder obtained is 15 . when 698 is divided by the same divisor the remainder obtained is 27 . however , when the sum of the two numbers 242 and 698 is divided by the divisor , the remainder obtained is 5 . what is the value of the divisor ?
answer:
3