1. An urn contains 3 red and 4 green marbles. If three marbles are picked at random, what is the probability that two green and one is red? (2)
- (1) 3/7
- (2) 18/35
- (3) 5/14
- (4) 4/21
- (5) None of these
2. A student has 60% chance of passing in English and 54% chance of passing in both English and Mathematics. What is the percentage probability that he will fail in Mathematics? (4)
- (1) 12
- (2) 36
- (3) 4
- (4) 10
- (5) 14
3. When three coins are tossed together, the probability that all coins have the same face up, is (3)
- (1) 1/3
- (2) 1/6
- (3) 1/8
- (4) 1/12
- (5) 1/17
4. Ten identical particles are moving randomly inside a closed box. What is the probability that at any given point of time all the ten particles will be lying in the same half of the box? (2)
- (1) 1/4
- (2) 1/512
- (3) 2/92
- (4) 2/112
- (5) 1/232
5. 3 digits are chosen at random from 1,2,3,4,5,6,7,8 and 9 without repeating any digit. What is the probability that their product is odd? (3)
- (1) 2/3
- (2) 5/108
- (3) 5/42
- (4) 8/42
- (5) 9/42