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Question

A product is an assemble of 5 different components. The product can be sequentially assembled in two possible ways. If the 5 components are placed in a box and these are drawn at random fromt he box, then the probability of getting a correct sequence is

A
25!
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B
25
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C
2(52)!
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D
2(53)!
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Solution

The correct option is A 25!
5 components can be arranged by 5! = 120 ways
But Favourable ways to assemble product = 2 (given)
So product can be assembled only when we draw correct sequence.

So P (correct sequence) =2120=25!

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