1. What least number must be added to 4000 to obtain a number exactly divisible by 27
a) 23
b) 24
c) 25
d) 26
A is the right answer.
Step1 : Divide 4000 by 27 and get the reminder as 4.
Step2 : Now the reminder should be subtracted from 27.
So the answer is 23. And the number is 4023.
