Please help, maths question??!!

One day Tom buys an electric drill when the shop offers a 20% discount. The next day Jake buys an identical drill but the discount is 25%. If Tom paid £4 more than Jake, what was the original price of the drill? Be glad for any help, thanks

If the extra 5% is £4 difference then 10% would be £8 meaning the drill was £80? Tom paid £64 and Jake paid £60.

Because of the 20% discount that Tom got, that means the drill costed 80% of it's original price.
Because of the 25% discount that Jake got, that means the drill costed 75% of it's original price.

If Tom paid £4 more than jake, that means 5% = £4.
Thus the original price was £80
Tom paid £64
Jake paid £60

The percentage difference is 5% and the price difference is £4. Therefore 5% is £4. 100% is 20 5s, therefore the calculation you need is 4x20=80. £80 is the original price of the drill.

Tom = 80%
Jake = 75%

Tom - Jake = 80% - 75% = 5% = £4
£4 x 20 (100/20=5) = £80

Total Price of the Drill was £80
Tom Payed £64 (80% x £80)
Jake Payed £60 (75% x £80)

Jake saved £4 with an extra discount of 5%.

Hence 5% = 4

4 / 5 = 0.8

So 1% = £0.80

Therefore: 0.80 x 100 = £80.00

5% must be £4.
4/5 = 1%
100(4/5) = £80

£80
if £4 is 5% then you just multiply 4 by 20