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Question

Which of the following numbers is divisible by 11?

A
28412
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B
28424
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C
38149
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D
12365
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Solution

The correct option is B 28424
For a number to be divisible by 11, we add the numbers at odd places and even places and subtract the sums. If the answer is 0 or divisible by 11, then the number is divisible by 11.

28424:(4+4+2)(2+8)=1010=0

28412:(2+4+2)(1+8)=89=1

38149:(9+1+3)(4+8)=1312=1

12365:(5+3+1)(6+2)=98=1

Among the given numbers, only 28424 is divisible by 11.

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