Aptitude Tests 4 Me

Basic Numeracy/Quantitative Aptitude

233. The probability of having a girl is identical to the probability of having a boy. In a family with three children, what is the probability that all the children are of the same gender?

 (a) 1/8 (b) 1/6 (c) 1/3 (d) 1/4

234. On one side of a coin there is the number 0 and on the other side the number 1. What is the probability that the sum of three coin tosses will be 2?

 (a) 1/8 (b) 1/2 (c) 1/5 (d) 3/8

235. In a flower shop, there are 5 different types of flowers. Two of the flowers are blue, two are red and one is yellow. In how many different combinations of different colors can a 3-flower garland be made?

 (a) 4 (b) 20 (c) 3 (d) 5

236. In a jar there are balls in different colors: blue, red, green and yellow.
The probability of drawing a blue ball is 1/8.
The probability of drawing a red ball is 1/5.
The probability of drawing a green ball is 1/10.
If a jar cannot contain more than 50 balls, how many yellow balls are in the Jar?

 (a) 23 (b) 20 (c) 24 (d) 17

237. In a jar there are 3 red balls and 2 blue balls. What is the probability of drawing at least one red ball when drawing two consecutive balls randomly?

 (a) 9/10 (b) 16/20 (c) 2/5 (d) 3/5

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