Probability Class 9 Worksheet with Answers
1. Find the
probability of getting a spade from a pack of 52 cards in a random experiment.
2. A coin is
tossed 300 times and the following results are obtained.
Heads - 170; Tails - 130. Find the
probability of getting
a. heads
b. tails
3. A die is rolled. Find the probability of getting
a. an even number
b. a prime number
c. a number less than 3
d. a number which is multiple
of 3
4. In a box, there are 20 cards with numbers 1 to 20. A card is
selected at random from the box. Find the probability of getting
a. a prime number
b. a multiple of 6
c. a one-digit number
5. Find the
probability of getting a heart card when a card is selected at random from a
pack of 52 cards.
6. In a
class of 60 students, 20 students play football, 25 students play cricket and
the remaining students play tennis. If one student is selected at random, find
the probability that the selected student plays tennis. Also, find the
probability that the selected student plays cricket.
7. A bag contains 25 red, 35 yellow and 40 blue balls. A ball is
taken out of the bag at random. Find the probability that the ball taken out is
of
a. red colour
b. yellow colour
c. blue colour
8. In a box, there are 15 cards with numbers 1 to 15. A card is
selected at random from the box. Find the probability of getting
a. an even number
b. an odd number
c. a factor of 15
d. a composite
number
9. There are
20 beads in a necklace with 4 green, 5 red, 3 black and 8 white beads. A bead
is touched at random with eyes closed. Find the probability of touching
a. a green bead
b. a red bead
c. a black bead
d. a green or
red bead
10. A bag
contains 5 red, 10 black and 15 green balls. A ball is taken out at random.
Find the probability that the ball taken out is:
a. a red ball
b. a black ball
c. not a black ball
d. not a green
ball.
11. A bag
contains 25 pink balls, 15 green balls and 20 purple balls. Find the
probability of getting a purple ball.
12. The chits with numbers 15 to 40 are put in a box. A chit is drawn
at random. Find the probability of getting a chit with a number which is a
multiple of 7.
ANSWERS
1. ¼
2. a. 17/30 b. 13/30
3. a. ½ b. ½
c. 1/3 d. 1/3
4. a. 2/5 b. 3/20
c. 9/20
5. ¼ 6. ¼ ; 5/12
7. a. ¼ b. 7/20
c. 2/5
8. a. 7/15 b. 8/15
c. 4/15 d. 8/15
9. a. 1/5 b. ¼
c. 3/20 d. 9/20
10. a. 1/6 b. 1/3
c. 2/3 d. ½
11. 1/3 12. 3/26
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| Maths Worksheets for Other Chapters of Class 9 |
1. Surface area and volume class 9 worksheets
3. Area of parallelograms and triangles worksheets
4. Triangles class 9 worksheets
5. Number system class 9 worksheets
6. Polynomials class 9 worksheets
7. Coordinate geometry class 9 worksheets
8. Linear equations in two variables class 9 worksheets
9. Introduction to Euclid’s geometry class 9 worksheets
10. Lines and angles class 9 worksheets
11. Quadrilaterals class 9 worksheet
12. Heron’s formula class 9 worksheet
13. Statistics class 9 worksheets
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