Example 1 · level 1
Priya scored 8 out of 16 in a quiz. What percentage is that?
Show solution
- 8/16 = 1/2.
- 1/2 × 100 = 50%.
Answer: 50 %
CLASS 7 MATHS · COMPARING QUANTITIES
Percentages: convert and compare
To write a fraction as a percent, multiply by 100. Percent increase = increase ÷ original × 100.
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Worked examples
Example 2 · level 2
Monthly bus pass price changed from 475 to 522.5. Find the percentage increase.
Show solution
- Change = 47.5.
- 47.5 ÷ 475 × 100 = 10%.
Answer: 10 %
Example 3 · level 3
The price of a kilo of tomatoes changed from 1,375 to 1,581.25. Find the percentage increase.
Show solution
- Change = 206.25.
- 206.25 ÷ 1,375 × 100 = 15%.
Answer: 15 %