engineering recuitment FCI JE 2022 Mock Test for CE/ME/EE (Phase I & II) Quantitative Aptitude Probability
A box contains 10 balls. 6 black balls and 4 blue balls. What is the probability when two balls are drawn and neither of them is of same colour?
1
2/5
2
1/5
3
8/15
4
1/7
5
1/8