Class 7 Exam  >  Class 7 Notes  >  Mathematics (Maths) Class 7  >  RD Sharma Solutions: Percentage (Exercise 11.2)

Percentage (Exercise 11.2) RD Sharma Solutions | Mathematics (Maths) Class 7 PDF Download

Download, print and study this document offline
Please wait while the PDF view is loading
 Page 1


 
 
 
 
 
 
 
         
 
1. Express each of the following ratios as per cents: 
(i) 4: 5 
(ii) 1: 5 
(iii) 11: 125 
 
Solution: 
(i) Given 4: 5 
4: 5 can be written as (4/5) 
= (4/5) × 100 
= 80% 
 
(ii) Given 1: 5 
1: 5 can be written as (1/5) 
= (1/5) × 100 
= 20% 
 
(iii) Given 11: 125 
11: 125 can be written as (11/125) 
= (11/125) × 100 
= (44/5) % 
 
2. Express each of the following percents as ratios in the simplest form: 
(i) 2.5% 
(ii) 0.4% 
(iii) 13 3/4 % 
 
Solution: 
(i) Given 2.5% 
= (2.5/100) 
= (25/1000) 
= (1/40) 
 
(ii) Given 0.4% 
= (0.4/100) 
Page 2


 
 
 
 
 
 
 
         
 
1. Express each of the following ratios as per cents: 
(i) 4: 5 
(ii) 1: 5 
(iii) 11: 125 
 
Solution: 
(i) Given 4: 5 
4: 5 can be written as (4/5) 
= (4/5) × 100 
= 80% 
 
(ii) Given 1: 5 
1: 5 can be written as (1/5) 
= (1/5) × 100 
= 20% 
 
(iii) Given 11: 125 
11: 125 can be written as (11/125) 
= (11/125) × 100 
= (44/5) % 
 
2. Express each of the following percents as ratios in the simplest form: 
(i) 2.5% 
(ii) 0.4% 
(iii) 13 3/4 % 
 
Solution: 
(i) Given 2.5% 
= (2.5/100) 
= (25/1000) 
= (1/40) 
 
(ii) Given 0.4% 
= (0.4/100) 
 
 
 
 
 
 
 
= (4/1000) 
= (1/250) 
 
(iii) Given 13 3/4 % 
13 3/4 = 13.75 
= 13.75/100 
= 1375/10000 
= 11/80 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Read More
76 videos|344 docs|39 tests

Top Courses for Class 7

76 videos|344 docs|39 tests
Download as PDF
Explore Courses for Class 7 exam

Top Courses for Class 7

Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev
Related Searches

Summary

,

Percentage (Exercise 11.2) RD Sharma Solutions | Mathematics (Maths) Class 7

,

Percentage (Exercise 11.2) RD Sharma Solutions | Mathematics (Maths) Class 7

,

study material

,

Exam

,

ppt

,

Extra Questions

,

shortcuts and tricks

,

Objective type Questions

,

pdf

,

Viva Questions

,

Semester Notes

,

video lectures

,

practice quizzes

,

Sample Paper

,

Previous Year Questions with Solutions

,

Important questions

,

Percentage (Exercise 11.2) RD Sharma Solutions | Mathematics (Maths) Class 7

,

mock tests for examination

,

past year papers

,

MCQs

,

Free

;