Question
Which of the following numbers is divisible by
11?Solution
5837924: Difference = (5 + 3 + 9 + 4) – (8 + 7 + 2) = 21 – 17 = 4
7412965: Difference = (7 + 1 + 9 + 5) – (4 + 2 + 6) = 22 – 12 = 10
2857146: Difference = (2 + 5 + 1 + 6) – (8 + 7 + 4) = 14 – 19 = 5
3162849: Difference = (3 + 6 + 8 + 9) – (1 + 2 + 4) = 26 – 7 = 19
None of them is divisible by 11.
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