Class 7 Maths Chapter 7 Comparing Quantities NCERT Exercise 7.2 Full Solved

Welcome to CBSE Worldz. In this video we will be discussing CBSE class 7 Maths Chapter 7 Comparing Quantities Exercise 7.2 Full solved
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✅Class 7 Maths chapterwise Playlist
👉Chapter 1 : Integers: • Class 7 Maths Chapter-...
👉Chapter 2 Fractions and Decimals: • Class 7 Maths Chapter-...
👉Chapter 3 Data Handling: • Class 7 Maths Chapter-...
👉Chapter 4 Simple Equations: • Class 7 Maths Chapter-...
👉Chapter 5 Lines and Angles: • Class 7 Maths Chapter-...
👉Chapter 6 The Triangle and its Properties: • Class 7 Maths Chapter-...
👉Chapter 7 Comparing Quantities: • Class 7 Maths Chapter-...
👉Chapter 8 Rational Numbers: • Class 7 Maths Chapter-...
👉Chapter 9 Perimeter and Area: • Class 7 Maths Chapter-...
👉Chapter 10 Algebraic Expressions: • Class 7 Maths Chapter-...
👉Chapter 11 Exponents and Powers: • Class 7 Maths Chapter-...
👉Chapter 12 Symmetry: • Class 7 Maths Chapter-...
👉Chapter 13 Visualising Solid Shapes: • Class 7 Maths Chapter-...
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👉Class 7 Science: • Class 7 Science
👉Class 7 Maths:
Questions:
1. Tell what is the profit or loss in the following transactions. Also find profit per cent or loss per cent in each case.
2. Convert each part of the ratio to percentage:
3. The population of a city decreased from 25,000 to 24,500. Find the percentage decrease.
4. Arun bought a car for Rs 3,50,000. The next year, the price went upto Rs 3,70,000. What was the Percentage of price increase?
5. I buy a T.V. for Rs 10,000 and sell it at a profit of 20%. How much money do I get for it?
6. Juhi sells a washing machine for Rs 13,500. She loses 20% in the bargain. What was the price at which she bought it?
7. (i) Chalk contains calcium, carbon and oxygen in the ratio 10:3:12. Find the percentage of carbon in chalk.
(ii) If in a stick of chalk, carbon is 3g, what is the weight of the chalk stick?
8. Amina buys a book for Rs 275 and sells it at a loss of 15%. How much does she sell it for?
9. Find the amount to be paid at the end of 3 years in each case:
(a) Principal = Rs 1,200 at 12% p.a. (b) Principal = Rs 7,500 at 5% p.a.
10. What rate gives Rs 280 as interest on a sum of Rs 56,000 in 2 years?
11. If Meena gives an interest of ` 45 for one year at 9% rate p.a.. What is the sum she has borrowed?
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class 7 maths exercise 7.2 solution
class 7 maths chapter 7 exercise 7.2 full solved
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