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
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 .
3/4
7/19
1/3
8/21
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
What is the probability of getting a sum 9 from two throws of a disc ?
1/6
1/8
1/9
1/12
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 ?
1/2
2/5
8/15
9/20
There are four letters and four envelopes ,then the probability for all the letters not despatching in the right envelope is
19/24
21/23
23/24
25/26
Two dice are thrown simultaneously ,then the probability of getting an even number as the sum is
1/4
1/7
Three houses are available in a locality .Three persons apply for the houses .Each applies for one house with out consulting the others.The probability that all three apply for the same house is
2/9
3/9
5/9
If two coins are tossed once. What is the probability of getting at least one head?
2/4
1
Three unbiased coins are tossed. What is the probability of getting at most two heads ?
3/8
7/8
