The exercise-wise solutions are presented in an interactive manner to help students with their exam preparation. The expert faculty at BYJU’S provides students with PDFs of solutions to solve problems in accordance with the CBSE syllabus. RD Sharma Solutions for Class 7 Maths Chapter 11 Percentage Exercise 11.3 are provided here. This exercise gives explanations and a step-by-step method to convert the given per cent into decimals and vice versa. To learn more about these topics, click the link provided here of RD Sharma Solutions for Class 7.
RD Sharma Solutions for Class 7 Maths Chapter 11 – Percentage Exercise 11.3
Access answers to Maths RD Sharma Solutions for Class 7 Chapter 11 – Percentage Exercise 11.3
Exercise 11.3 Page No: 11.5
1. Express each of the following percents as decimals:
(i) 12.5%
(ii) 75%
(iii) 128.8%
(iv) 0.05%
Solution:
(i) Given 12.5%
= (12.5/100)
= 0.125
(ii) Given 75%
= (75/100)
= 0.75
(iii) Given 128.8%
= (128.8/100)
= 1.288
(iv) Given 0.05%
= (0.05/100)
= 0.0005
2. Express each of the following decimals as per cents:
(i) 0.004
(ii) 0.24
(iii) 0.02
(iv) 0.275
Solution:
(i) Given 0.004
0.004 can be written as 4/1000
= (4/1000) × 100
= 0.4%
(ii) Given 0.24
0.24 can be written as (24/100)
= (24/100) × 100
= 24%
(iii) Given 0.02
0.02 can be written as (2/100)
= (2/100) × 100
= 2%
(iv) Given 0.275
0.275 can be written as (275/1000)
= (275/1000) × 100
= 27.5%
3. Write each of the following as whole numbers or mixed numbers:
(i) 136%
(ii) 250%
(iii) 300%
Solution:
(i) Given 136%
= (136/100)
On simplifying, we get
= (34/25)
(ii) Given 250%
= (250/100)
On simplifying
= (5/2)
(iii) Given 300%
= (300/100)
= 3
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