Instructions

An urn contains 6 red, 4 blue, 2 green and 3 yellow marbles.

Question 51

If two marbles are picked at random, what is the probability that both are red ?

Solution

Share

Number of ways of selecting 2 red balls in 2 chances = $$^{6}C_2$$

Probability of 2 red balls in 2 chances = $$\frac{^{6}C_2}{^{15}C_2}$$ = $$\frac{1}{7}$$

Get AI Help?

Create a FREE account and get:

  • Banking Quant Shortcuts PDF
  • Free Banking Study Material - (15000 Questions)
  • 135+ Banking previous papers with solutions PDF
  • 100+ Online Tests for Free

Join CAT 2026 course by 5-Time CAT 100%iler

Crack CAT 2026 & Other Exams with Cracku!

Enroll Now
Ask AI

Ask our AI anything

AI can make mistakes. Please verify important information.