Management Aptitude Test 2016 Paper

(c) You could pocket 0 or 1 or 2 or... or 10 white balls and 0 or 1 or 2 o r ... or 8 red balls and 0 or 1 or 2 or ... or 6 green balls.
∴ Required number of ways = 11 x 9 x 7 - 1
= 693 - 1 = 692