﻿ NCERT Solutions CBSE Class 10 Maths Chapter 15 | Probability

1. Introduction
2. Probability — A Theoretical Approach
3. Summary

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Chapter 15- Probability

Complete Understanding of Probability!

Probability is the study of the chance of happening something. Various situations and cases change the chance of the things that happen around us. The study of probability allows you to understand those chances. Hence, the chapter is included in the CBSE curriculum of class 10th.

At ScoreX™, you find an effective course of the ncert solutions for class 10th maths chapter 15. Our course is designed to make probability much simpler to understand.

What is the format of this chapter course?

In our course of the class 10 ncert solutions for maths chapter probability, you attain a complete knowledge of the topic with examples and practice opportunities.

Here is what you can expect in our chapter course:

1. Introduction

The introduction of the probability is provided with the help of suitable examples. This way, you attain the foundation of the topic, which helps you in the further studies of the chapter.

2. Probability — A Theoretical Approach

There are many events that don’t have certainty. The study of those events comes under probability. The idea of probability completely depends on the likeliness of something happening. The cases such as the toss of a coin, throwing a dice, and others come under the theoretical study. The understanding of the problem depends widely on the care you take while reading the words.

If you desire to practice the chapter with ease and become confident about the topic, get the course now. Our course has it all the make your studies effective and efficient.

1. Q.No 1 - 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?

10/21

11/21

2/7

5/7

1/10
2. Q.No 2 - A sum of money at simple interest amounts to Rs. 815 in 3 years and to Rs. 854 in 4 years. The sum is:

650

690

698

700

2/10
3. Q.No 3 - 22, 42, 64, 88, ?

114

112

116

110

3/10
4. Q.No 4 - The average of 20 numbers is zero. Of them, at the most, how many may be greater than zero?

0

1

10

19

4/10
5. Q.No 5 - 2442 , 1222 , 614 , 312 ,163 , 90 , 55.75 Look at series carefully and find the wrong number

1222

312

90

614

None of the above

5/10
6. Q.No 6 - Look at this series: 2, 1, (1/2), (1/4), ... What number should come next?

1/3

1/8

2/8

1/16

None of the above

6/10
7. Q.No 7 - 17, 14, 14, 11, 11, 8, 8 What comes next?

8,5

5,2

7,7

5,5

None

7/10
8. Q.No 8 - Find the wrong number in the following series. 3252 , 3080 , 2958 , 2876 , 2826

3080

2876

2826

3252

None

8/10
9. Q.No 9 - Look carefully for the pattern, and then choose which pair of numbers comes next 42, 40, 38, 35, 33, 31, 28

25, 22

26,23

26, 24

26,22

None

9/10
10. Q.No 10 - In the first 10 overs of a cricket game, the run rate was only 3.2. What should be the run rate in the remaining 40 overs to reach the target of 282 runs?

6.25

6.5

6.75

7

None

10/10