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Consider there are 6 benches and 2 boys , in how many ways can the boys be sited on the bench?

How to solve it using P & C
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To choose 2 benches from 6 benches - 6C2

There are 2! ways in which boys can sit on the bench.

Answer - 6C2 * 2! = 6P2

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Thanks man!

+1 vote