Find the least number that should be added to 567201, so that the sum is exactly divisible by 9.

Correct option is C

Given:

Number = 567201

We need to find the least number to add so that it becomes divisible by 9

Formula  Used:
A number is divisible by 9 if the sum of its digits is divisible by 9.

Solution:

Sum of digits = 5 + 6 + 7 + 2 + 0 + 1 = 21
Next multiple of 9 after 21 = 27
Required addition = 27 − 21 = 6

Hence least such number that should be added is 6.

Thus, the correct option is (c)  6