From a box containing 8 yellow and 5 white pens, three are drawn one after the other. Find the probability of all three pens being yellow if the pen drawn is replaced by another yellow colored pen before the next pen is picked.

From a box containing 8 yellow and 5 white pens, three are drawn one a

1.	From a box containing 8 yellow and 5 white pens, three are drawn one after the other. Find the probability of all three pens being yellow if the pen drawn is replaced by another yellow colored pen before the next pen is picked.
A.	336 2197
B.	512 2197
C.	40 2197
D.	57 91
E.	None of these
Answer» C. 40 2197

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From a box containing 8 yellow and 5 white pens, three are drawn one after the other. Find the probability of all three pens being yellow if the pen drawn is replaced by another yellow colored pen before the next pen is picked.

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