Posted by sajith on Sunday, July 22, 2012 at 11:47pm.
A box contains 10 balls of which 6 are red (R) and 4 are white (W) . Three balls are taken from the box at random, one after the other. The probability that the 3 balls drawn are in the order RRW is equal to,

science  bobpursley, Monday, July 23, 2012 at 6:11am
Pr=6/10*5/9*4/8= ?