Basic Numeracy/Quantitative Aptitude

177. A bag contains ‘6’ white and ‘4’ red balls. Two balls are drawn at random. What is the chance, they will be of the same colour?

	(a) 1/15
	(b) 2/15
	(c) 7/15
	(d) 9/15

178. For a post three persons ‘A’, ‘B’ and ‘C’ appear in the interview. The probability of ‘A’ being selected is twice that of ‘B’ and the probability of ‘B’ being selected is thrice that of ‘C’, what are the individual probability of A, B, C being selected?

	(a) 1/5
	(b) 2/5
	(c) 3/5
	(d) 4/5

179. An Italian restaurant has a choice of 4 starters, 5 main courses and 3 desserts on it's menu. How many different orders of 1 starter, 1 main course and 1 dessert can be made?

	(a) 12
	(b) 23
	(c) 30
	(d) 60

180. What is the probability of predicting the outcome of tossing a coin correctly three times in succession

	(a) 1/2
	(b) 1/3
	(c) 1/8
	(d) 1/9

181. 5 balls are numbered 1 to 5 and they are drawn randomly one at a time. What is the probability of predicting the order in which they are removed.

	(a) 1/30
	(b) 1/40
	(c) 1/60
	(d) 1/120

TOTAL

Detailed Solution

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