There are 2 vans each having numbered se...

There are 2 vans each having numbered seats, 3 in the front and 4 at the back. There are 3 girls and 9 boys to be seated in the vans. The probablity of 3 girls sitting together in a back row on adjacent seats, is

`(1)/(13)`

`(1)/(39)`

`(1)/(65)`

`(1)/(91)`

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The correct Answer is:

(d)

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