Every time you go shopping and check which item gives you better value, you are comparing quantities! It's about finding which is better, cheaper, or more valuable.
Shopping Example:
500 ml juice costs ₹50
1 liter juice costs ₹90
Which is better value for money?
We need to compare!
Discount in Shops:
Shirt price: ₹800
Discount: 20% off
How much do you pay?
20% of ₹800 = ₹160 discount
You pay: ₹800 - ₹160 = ₹640
Test Marks:
You scored 45 out of 50 in Maths
You scored 38 out of 50 in Science
Which subject did better?
Maths: (45/50)×100 = 90%
Science: (38/50)×100 = 76%
Maths is better!
Cricket Statistics:
Virat scored 80 runs in 100 balls
Rohit scored 60 runs in 50 balls
Who has better strike rate?
Strike rate = (Runs/Balls)×100
In this chapter, we will learn:
Comparing quantities helps us:
For Class 7 Students (NCERT & JKBOSE)