Bob buys a car for £120 after it is reduced by 20% in the sale. What was the original price of the car?

£120 is the price of the car after it has been reduced by 20%. This means that £120 is equal to 80% of the original price.2 ways to work this out:1) £120 = 80 % £ ? =100%therefore: £? = (120 x 100)/8012000/80 = 1200/8= £150 (therefore the original price is £150)
2) £120 = 80% therefore: (/4) £30 = 20%100% (=20% x 5) --> must do the same to the other side of the equation:100% = (£30 x 5)
100% = £150