"An urn contains 6 red, 4 blue, 2 green and 3 yellow marbles. If two marbles are picke
Channel: Doubtnut
Date: 05/04/2020

"An urn contains 6 red,
 4 blue, 2 green and 3 yellow marbles. If two marbles are picked up at random,
 what is the probability that either both are green or both are yellow?
`5/(91)`
(b) `1/(35)`
(c) `1/3`
(d) `4/(105)`
(e) None of these"