Home » quantitative aptitude » A bag has 6 black balls, 4 red balls and 8 white balls. If two balls are drawn at random, then find the probability that it contains no black balls Quantitative aptitude A bag has 6 black balls, 4 red balls and 8 white balls. If two balls are drawn at random, then find the probability that it contains no black balls March 6, 2024 25 Views A bag has 6 black balls, 4 red balls and 8 white balls. If two balls are drawn at random, then find the probability that it contains no black balls. a) 5/8 b) 4/91 c) 1/33 d) 22/51 e) None of these Sol: Number of Non black balls = 4 + 8 = 12 Required probability =12c2/18c2= (12*11) / (18 * 17) = 22 /51
A vessel of 115 litres is filled with milk and water. 70% of milk and 40% of water is taken out of the vessel it is found that the vessel is
A manufacture of patent medicines gives 2 dozen extra bottles of the medicine for every order of 15 dozens a discount of 25%
