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A bag contains 5 black and 7 white balls...

A bag contains 5 black and 7 white balls. A ball is drawn out-of it and replaced in the bag.Then a ball is drawn again. What is the probability that
both were white

Text Solution

Verified by Experts

The events are independent and capable of simultaneous occurrence. The rule of multiplication would be applied.
The probability that
Both the balls were white
`=7/12xx7/12=49/1441
From the above example we can see that how the quicker methods for such questions have been derived.
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