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Quantitative Aptitude

Conditional Probability

An urn contai...

Question

An urn contains 6 red, 4 blue and 3 green marbles. If 2 marbles are picked at random, then what is the probability that both the marbles are red?

A

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B

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C

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D

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Solution

The correct option is B

P(E) = $\frac{^{6} C_{2}}{^{13} C_{2}}$ = $\frac{5}{26}$ .

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