Chapter 8 Comparing Quantities
Very Short Answer Type
![](https://rajboardexam.in/wp-content/uploads/2022/07/word-image-148.png)
Solution:
![Comparing Quantities NCERT Extra Questions for Class 8 Maths Q2](https://rajboardexam.in/wp-content/uploads/2022/07/comparing-quantities-ncert-extra-questions-for-cla-36.png)
Question 3.
If 20% of x is 25, then find x.
Solution:
20% of x = 25
Hence x = 125
Question 4.
Express the following as a fraction
(a) 35%
(b) 64%
Solution:
![](https://rajboardexam.in/wp-content/uploads/2022/07/word-image-149.png)
Hence, profit = 25%
Question 8.
An article is marked at ₹ 940. If it is sold for ₹ 799, then find the discount per cent.
Solution:
MP = ₹ 940
SP = ₹ 799
Discount = MP – SP = 940 – 799 = ₹ 141
Hence, discount = 15%
![](https://rajboardexam.in/wp-content/uploads/2022/07/word-image-152.png)
Question 10.
Find the amount if ₹ 2,000 is invested for 2 years at 4% p.a. compounded annually.
Solution:
Short Answer Type
![](https://rajboardexam.in/wp-content/uploads/2022/07/word-image-154.png)
Hence, the required amount = ₹ 4,230
Hence, the net selling price = ₹ 2,63,952
![](https://rajboardexam.in/wp-content/uploads/2022/07/word-image-158.png)
Question 17.
Find the amount of ₹ 6,250 at 8% pa compounded annually for 2 years. Also, find the compound interest.
Solution:
![](https://rajboardexam.in/wp-content/uploads/2022/07/word-image-159.png)
![Comparing Quantities NCERT Extra Questions for Class 8 Maths Q18](https://rajboardexam.in/wp-content/uploads/2022/07/comparing-quantities-ncert-extra-questions-for-cla-47.png)
![](https://rajboardexam.in/wp-content/uploads/2022/07/word-image-160.png)
Question 20.
Find the compound interest on ₹ 48,000 for one year at 8% per annum when compounded half yearly. (NCERT Exemplar)
Solution:
Principal (P) = ₹ 48,000
Rate (R) = 8% p.a.
Time (n) = 1 year
Interest is compounded half yearly
Therefore Compound Interest = A – P = ₹ (519,16.80 – 48,000) = ₹ 3,916.80.
![comparing-quantities-ncert-extra-questions-for-class-8-maths-chapter-8-01](https://rajboardexam.in/wp-content/uploads/2022/07/comparing-quantities-ncert-extra-questions-for-cla-49.png)
![comparing-quantities-ncert-extra-questions-for-class-8-maths-chapter-8-02](https://rajboardexam.in/wp-content/uploads/2022/07/comparing-quantities-ncert-extra-questions-for-cla-50.png)
![comparing-quantities-ncert-extra-questions-for-class-8-maths-chapter-8-03](https://rajboardexam.in/wp-content/uploads/2022/07/comparing-quantities-ncert-extra-questions-for-cla-51.png)
![comparing-quantities-ncert-extra-questions-for-class-8-maths-chapter-8-04](https://rajboardexam.in/wp-content/uploads/2022/07/comparing-quantities-ncert-extra-questions-for-cla-52.png)
![comparing-quantities-ncert-extra-questions-for-class-8-maths-chapter-8-05](https://rajboardexam.in/wp-content/uploads/2022/07/comparing-quantities-ncert-extra-questions-for-cla-53.png)
![comparing-quantities-ncert-extra-questions-for-class-8-maths-chapter-8-06](https://rajboardexam.in/wp-content/uploads/2022/07/comparing-quantities-ncert-extra-questions-for-cla-54.png)
![comparing-quantities-ncert-extra-questions-for-class-8-maths-chapter-8-07](https://rajboardexam.in/wp-content/uploads/2022/07/comparing-quantities-ncert-extra-questions-for-cla-55.png)
![comparing-quantities-ncert-extra-questions-for-class-8-maths-chapter-8-08](https://rajboardexam.in/wp-content/uploads/2022/07/comparing-quantities-ncert-extra-questions-for-cla-56.png)
![comparing-quantities-ncert-extra-questions-for-class-8-maths-chapter-8-09](https://rajboardexam.in/wp-content/uploads/2022/07/comparing-quantities-ncert-extra-questions-for-cla-57.png)
![comparing-quantities-ncert-extra-questions-for-class-8-maths-chapter-8-10](https://rajboardexam.in/wp-content/uploads/2022/07/comparing-quantities-ncert-extra-questions-for-cla-58.png)
![comparing-quantities-ncert-extra-questions-for-class-8-maths-chapter-8-11](https://rajboardexam.in/wp-content/uploads/2022/07/comparing-quantities-ncert-extra-questions-for-cla-59.png)
![comparing-quantities-ncert-extra-questions-for-class-8-maths-chapter-8-12](https://rajboardexam.in/wp-content/uploads/2022/07/comparing-quantities-ncert-extra-questions-for-cla-60.png)
![comparing-quantities-ncert-extra-questions-for-class-8-maths-chapter-8-13](https://rajboardexam.in/wp-content/uploads/2022/07/comparing-quantities-ncert-extra-questions-for-cla-61.png)
![comparing-quantities-ncert-extra-questions-for-class-8-maths-chapter-8-14](https://rajboardexam.in/wp-content/uploads/2022/07/comparing-quantities-ncert-extra-questions-for-cla-62.png)
![comparing-quantities-ncert-extra-questions-for-class-8-maths-chapter-8-15](https://rajboardexam.in/wp-content/uploads/2022/07/comparing-quantities-ncert-extra-questions-for-cla-63.png)
![comparing-quantities-ncert-extra-questions-for-class-8-maths-chapter-8-16](https://rajboardexam.in/wp-content/uploads/2022/07/comparing-quantities-ncert-extra-questions-for-cla-64.png)
![comparing-quantities-ncert-extra-questions-for-class-8-maths-chapter-8-17](https://rajboardexam.in/wp-content/uploads/2022/07/comparing-quantities-ncert-extra-questions-for-cla-65.png)
![comparing-quantities-ncert-extra-questions-for-class-8-maths-chapter-8-18](https://rajboardexam.in/wp-content/uploads/2022/07/comparing-quantities-ncert-extra-questions-for-cla-66.png)
![comparing-quantities-ncert-extra-questions-for-class-8-maths-chapter-8-19](https://rajboardexam.in/wp-content/uploads/2022/07/comparing-quantities-ncert-extra-questions-for-cla-67.png)
![comparing-quantities-ncert-extra-questions-for-class-8-maths-chapter-8-20](https://rajboardexam.in/wp-content/uploads/2022/07/comparing-quantities-ncert-extra-questions-for-cla-68.png)