RRB Assistant Loco Pilot and Technician Model Paper 8 with solutions

Question : 12 of 75

Marks: +1, -0

A bag contains 4 red, 5 black and 6 white balls. A ball is drawn at random. The probability that the ball drawn is red or white is

Solution:

Total no. of Red & White ball = 10
Total no. of ball = 15
Probability of extracting Red or white ball
=

10/15=2/5

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