An urn contains 6 red, 5 blue and 2 green marbles. If 2 marbles are picked at random, what is the probability that both are red?

A. $$\frac{6}{{13}}$$

B. $$\frac{{5}}{{26}}$$

C. $$\frac{{5}}{{13}}$$

D. $$\frac{{7}}{{26}}$$

Answer: Option B

Solution(By Examveda Team)

P(Both are red),
$$\eqalign{ & = \frac{{^6{C_2}}}{{^{13}{C_2}}} \cr & = \frac{5}{{26}} \cr} $$