Question

Jenny changed £480 into $744 when she went to America.

On her return she had $310 left.
If the exchange rate stayed the same, how many pounds did she get back?

Answer 1

£200

Explanation:

To determine how many pounds Jenny got back, we first need to calculate the exchange rate between pounds (£) and dollars ($).

Jenny initially changed £480 into $744, so £480 = $744.

To find the exchange rate in terms of pounds (£) to dollars ($), divide both quantities by 480:

`(480)/(480)=(744)/(480)`

`\£1=\$1.55`

Therefore, the exchange rate was £1 = $1.55.

This means that for every £1 Jenny exchanged, she received $1.55.

To convert the $310 Jenny had left back into pounds (£), divide the dollar amount by 1.55:

`(310)/(1.55)=200`

Therefore, if the exchange rate stayed the same, Jenny got back £200.