The least number which must be subtracted from 7278745 so as to obtain a sum that is divisible by 11 is:
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 1 i.e. 1.
Divisibility rule of 11: The difference between the sum of the digits at odd places and the sum of the digits at even places is either 11 or 0.
Given, 7278745
Sum of digits at odd places = 7 + 7 + 7 + 5 = 26
Sum of digits at even places = 2 + 8 + 4 = 14
Difference = 26 - 14 = 12
The difference should be 11, so the least number to be subtracted is 1.