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NCERT Solutions for Class 7 Maths Chapter 8 Comparing Quantities Exercise 8.3 is provided in pdf format for the reference of students. This topic broadly discusses the conversion of ratios to percentages and computing the percentage of profit or loss incurred during transactions.
Exercise 8.3 has questions on the increase and decrease as percent, determining cost and selling price of products, and evaluating the simple interest.
Download PDF: NCERT Solutions for Class 7 Maths Chapter 8 Exercise 8.3
Check other NCERT Solutions for Class 7 Maths Chapter 8:
- NCERT Solutions Class 7 Maths Chapter 8 Exercise 8.1
- NCERT Solutions Class 7 Maths Chapter 8 Exercise 8.2
Read More: NCERT Solutions for Class 7 Maths Chapter 8
Example From Class 7 Chapter 8 Comparing Quantities
| Ques. The small-town population decreased from 18,560 to 15,787 owing to the breakout of a viral epidemic. Determine the percentage decrease in the population? Ans. We know that The percentage decrease in population = (Decrease in population/ Original population) x 100 In the question, Original population = 18560 Decreased population value= 15787 Therefore, The decrease in population= 18560-15787 =2773 Applying the percentage decrease formula we get, (2773/18560) x 100 = 14.94% Hence the percentage decrease in population is 14.94%. |
Read More:
| Profit and Loss Formula | Simple Interest | Proportions |
| Ratio to Percentage | Calculating Percentages | Fractions |
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