On holiday, Mr Baker buys some perfume for 12 dollars and a book for 5 dollars.

He calculates that the perfume costs £4.80 and the book costs £2.00.

How much would a 7 dollar T-shirt cost?

2 answers

12/4.8 = 2.5 dollars/pound

5/2 = 2.5 dollars /pound (glad that was the same :)
so

7 dollar * 1pound/2.5 dollars = 2.80 pounds
1. On holiday, Mr Baker buys some perfume for 12 dollars and a book for 5 dollars.
He calculates that the perfume costs £4.80 and the book costs £2.00.

How much would a 7 dollar T-shirt cost?

The T-shirt would cost £2.80