Download NCERT Solutions for Class 7 Maths Chapter 8 Comparing Quantities in PDF English Medium updated for the new academic session 2018-19. All the solutions are based on new updated NCERT Books for 2018-2019.
NCERT Solutions for Class 7 Maths Chapter 8
Class 7 Maths Chapter 8 Solutions in English
Download NCERT Solutions for Class 7 Maths Chapter 8
Class 7 Maths Chapter 8 Exercise 8.1 in English Medium
Class 7 Maths Chapter 8 Exercise 8.2 in English Medium
All NCERT Solutions in English Medium are available to download to use it offline. Use online study options if you don’t want do download it. We are preparing Hindi Medium solutions also for the class 7 Maths students. Very soon it will be available for all.
About 7 Maths Chapter 8
In 7 Maths Chapter 8 Comparing Quantities, we will study actually ratio and proportions in practical life. Some time we need to convert numbers into percentage. Percentages are numerators of fractions with denominator 100. Per cent is derived from Latin word ‘per centum’ meaning ‘per hundred’. Percentage when the total does not add to give 100. In the case, we multiply the fraction by 100/100. This does not change the value of the fraction. Subsequently, only 100 remains in the denominator. In this chapter we practice the questions based on –
- Converting fraction into percent and vice versa.
- Converting decimal into percent and vice versa.
- Converting ratio into percent and percent into ratio also.
On the basis of percent, we can find the increase percent or decrease percent in any commodity to check the increase the cost percentage. The concepts of Cost price, Selling Price, Discount, Profit, Loss, etc. are based on the application of percentage. Simple Interest and Compound Interest are also the application in percentage.
- The increase or decrease in a certain quantity can also be expressed as percentage.
- When parts of a quantity are given to us as ratios, we have seen how to convert them to percentages.