Question

16) The price of petrol increased by 10% Six months later it increased again by 10% There were no other price changes. What was the total percentage increase in the price of petrol?​

Answer 1

When the price of petrol increases by 10% and then by another 10%, you can calculate the total percentage increase as follows:

1. First, you increase the price by 10%: 100% (original price) + 10% = 110%.

2. Then, you increase the result by another 10%: 110% + 10% = 121%.

So, the total percentage increase in the price of petrol is 121%.