Answer:
£4.80
Explanation:
We know
A shop advertises 15% off
100% - 15% = 85%
So, £4.08 is the price at 85%
Find 1% by taking
4.08 divided by 85 = £0.048
Now find the price before the reduction by taking
0.048 times 100 = £4.80
So, it was £4.80 before the price reduction.