Question

which is the largest number of 4 digits divisible by 85

Answer 1

first we take 9999
9999/4=2499.75
secondly we take 9998
9998/4=2499.5
then we take 9997
9997/4=2499.25
then 9996
9996/49=2499
so it means 9996 is correct

Answer 2

9999/85

remainder is 54

9999-54=9945 ans.