Two similar boxes Bi (i = 1, 2) contain (i + 1) red and (5 – i – 1) black balls. One box is chosen at random and two balls are drawn randomly. What is the probability that both the balls are of different colours?
Mathematics
2015
NDA Mathematics 2015
NDA 2015
Options
Similar Questions
Two dice each numbered from 1 to 6 are thrown together. Let A and B…
Two dice each numbered from 1 to 6 are thrown together. Let A and B…
An urn contains one black ball and one green ball. A second urn contains one…
An urn contains one black ball and one green ball. A second urn contains one…
What is the most probable number of successes in 10 trials with probability of success…