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The number of ways in which the followin...

The number of ways in which the following prizes be given to a class of 20 boys, first and second mathematics, first and second physics , first chemistry and first english is

A

`20^4 xx 19^2`

B

`20^3 xx19^3`

C

`20^2 xx 19^4`

D

None of these

Text Solution

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The correct Answer is:
A
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