A and B draw from a purse containing 3 rupees and 4 nP.'s; find their respective chance of 1st drawning a rupee, the coins when drawn not being replaced
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Given:
A and B draw from a purse containing 3 rupees and 4 Paise.
To Find:
Their respective chance of 1st drawing a rupee, the coins when drawn not being replaced.
Solution:
The purse has exactly 3 rupees and 4 paise.
Total number of coins = 7.
- Probability of drawing a rupee = 3/7
Given the coins when drawn are not replaced.
- Probability of drawing second rupee = 2/6 .
Since the events where A and then B draw coins are independent,
- P(A and B draws a rupee) = 3/7 x 2/6
Probability of A drawing a rupee coin = 3/7
Probability of B drawing a rupee coin = 1/3
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