Question

The price of a watch was increased by 20% to £162. What was the price before the increase?

Answer 1

£135

Explanation:

I divided by 120, to get 1% of 120%(120% because of the 20% increase.) Then times by 100 to get the original price.

Answer 2

£135

Explanation:

Original price = 100%

Percentage increase = 20%

New price = 100% + 20% = 120%

If 120% = £162

What about 100% = ?

= (100 x 162) ÷ 120

= 16200 ÷ 120

= £135