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
What is the probability of getting a sum 9 from two throws of a disc ?
1/6
1/8
1/9
1/12
If P(B)= 3/4 ,
1/15
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
Nine playing cards are numbered 2 to 10 .A card is selected from them at random. probability that the card will be a multiple of 4 is
2/9
2/10
1/10
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
Three unbiased coins are tossed. What is the probability of getting at most two heads ?
1/4
3/8
7/8
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
A bag contains 20 coloured balls.8 are red,6 are blue,3 are green,2 are white and 1 is brown.A ball is chosen atrandom from the bag.What is the probability that the ball chosen is blue or red?
6/20
8/20
14/20
1
From a pack of 52 cards, two cards are drawn together at random .What is the probability of both the cards being kings ?
25/57
35/256
1/221
