Question

The price of a car is £15400 before it is reduced by 8%.

How much does it cost after the reduction

Answer 1

hmm the reduction is 8%, how much is 8% of 15400 anyway?

if we take 15400 to be the 100%, what is 8%?


`\bf \begin{array}{ccll} amount&\%\\ \text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\ 15400&100\\ x&8 \end{array}\implies \cfrac{15400}{x}=\cfrac{100}{8}\implies \cfrac{15400\cdot 8}{100}=x`

so, the reduced price of the car is 15400 - x.