Question
Which of the following numbers is divisible by
11?Solution
Divisibility check for 11 = Difference between sum of digits at odd places and sum of digits at even places must be either '0' or a multiple of 11. For option 'A': 64855 = (6 + 8 + 5) - (4 + 5) = 10 {Not divisible by 11} For option 'B': 29239 = (2 + 2 + 9) - (9 + 3) = 1 {Not divisible by 11} For option 'C': 53416 = (5 + 4 + 6) - (3 + 1) = 11 {Divisible by 11} For option 'D': 53151 = (5 + 1 + 1) - (3 + 5) = -1 {Not divisible by 11}.
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