Answers

2015-06-24T16:49:31+05:30
Lets take examples
4²-2²=16-4=12
6²-4²=36-16=20
8²-6²=64-36=28
10²-8²=100-64=36

The common divident of all the nos. 12, 20, 28, 36 is 4
Ans.(b)4

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MASelvam
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