TS ICET 23 May 2018 Shift 1 Paper

Question : 148 of 200

Marks: +1, -0

A bag contains 8 white balls and 6 red balls. The probability of drawing at random two balls of the same colour is

Solution:

Total number of balls in bag

= 8+6 = 14

Required probability

={^{8} C_{2}+^{6} C_{2}}/{^{14} C_{2}}={28+15}/{91}=\;{43}/{91}

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