A bag contains 2 red,3 green and 2 blue balls.Two balls are drawn at random.What is the probability that none of the balls drawn is blue ?
1/21
10/21
2/7
5/7
The probability of getting at least one tail in 4 throws of a coin is
15/26
15/16
1/4
1/8
From a pack of 52 cards, two cards are drawn together at random .What is the probability of both the cards being kings ?
1/15
25/57
35/256
1/221
If two coins are tossed once. What is the probability of getting at least one head?
2/4
3/4
1
Two dice are thrown simultaneously ,then the probability of getting an even number as the sum is
1/2
1/3
1/7
A bag contains 6 black and 8 white balls .One ball is drawn at random .What is the probability that the ball drawn is white ?
4/7
3/7
In a box,there are 8 red,7 blue and 6 green balls .One ball is picked up randomly.What is the probability that it neither red nor green .
7/19
8/21
Ticket numbered 1 to 20 are mixed up and then a ticket is drawn at random .What is the probability that the ticket drawn has a number which is a multiple of 3 or 5 ?
2/5
8/15
9/20
Three unbiased coins are tossed. What is the probability of getting at most two heads ?
3/8
7/8
In a school of 50 students there are 35 girls and rest are boys.Then the probability that a selected student will be a boy is
3/10
1/5
7/5
4/5
