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

Problem: after decreasing 24 % in the price of an article costs rs . 684 . find the actual cost of an article ?
900

Problem: if z is a multiple of 8778 , what is the remainder when z ^ 2 is divided by 9 ?
0

Problem: if the product of the integers from 1 to n is divisible by 378 , what is the least possible value of n ?

9