Question

180 euros to the uk exchange rate was €1.2 to £1 how much did he get in £ sterling

Answer 1

Amount in £ is: 180 / 1.2 = £150

Answer 2

Here you can use proportion:

The ratio betwen €1.2 to £1

is the same as the ratio between €180 to £x

Mathematically this means that

`(1.2)/(180) =(1)/(x)`.

Now

`1.2\cdot x=180\cdot 1\\\\ x=(180)/(1.2) \\ \\x=150`

Answer: €180 is £150