An urn contains 6 red, 4 blue, 2 green and 3 yellow marbles.
If two marbles are picked at random, what is the probability that both are red ?
Number of ways of selecting 2 red balls in 2 chances = $$^{6}C_2$$
Probability of 2 red balls in 2 chances = $$\frac{^{6}C_2}{^{15}C_2}$$ = $$\frac{1}{7}$$
Create a FREE account and get:
Day-wise Structured & Planned Preparation Guide
By proceeding you agree to create your account
Free CAT Schedule PDF will be sent to your email address soon !!!
