Aptitude Tests 4 Me

Basic Numeracy/Quantitative Aptitude

247. Two dice are thrown simultaneously. Find the probability of getting A total of at least 0

 (a) 1/4 (b) 1/5 (c) 1/6 (d) 1/7

248. A bag contains ‘6’ red, 4 white and 8 blue balls. If three balls are drawn at random, find the probability, that none is red

 (a) 51/204 (b) 53/204 (c) 55/204 (d) 59/204

249. In a lottery of 50 tickets numbered from ‘1’ to ‘50’ two tickets are drawn simultaneously. Find the probability that: Both the tickets drawn have prime number on them

 (a) 19/245 (b) 4/49 (c) 21/245 (d) 22/245

250. The probability that a contractor will get a contract is ‘2/3’ and the probability that he will get on other contract is 5/9 . If the probability of getting at least one contract is 4/5, what is the probability that he will get both the contracts ?

 (a) 7/45 (b) 8/45 (c) 17/45 (d) 19/45

251. To win a game, I must do three things: Flip heads on a fair coin toss, roll a composite number on a number cube, and spin a 2 on a spinner with three equal areas, each labeled with a different number 1-3. What is the probability that I win the game?

 (a) 1/8 (b) 1/18 (c) 1/9 (d) 2/9

TOTAL

Detailed Solution

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