Question

The cost of my school exercise book was Rs. 10. Now she has to pay Rs. 6. I buy the same exercise book for Rs. 12. Let's calculate the percentage increse in the price of the excercise book. ​

Answer 1

Answer:

20%

Step-by-step explanation:

If the initial price of Notebook is 10, and is increased to 12 Rs. Then the increased value is Rs. 2.

Calculating Percentage Increase,

final value - initial value/ initial value = % increase

Putting values

12-10/10 = 20% increase in price of Notebook

Answer 2

Answer:

20%

Step-by-step explanation:

1. = final value - initial value × 10 = % increase
2. = 12 - 10 × 10 = % increase
3. = 2 × 10 = % increase
4. = 20 = % increase