Question

Adam buys 4 pens and a ruler and pays £4.75 altogether.

Jack buys 2 pens and pays £1.98 altogether

How much does one ruler cost

Answer 1

I don't know and I love your mother and what she does to me every night

Answer 2

0.79

Explanation:

First we need to find the price of one pen:

1.98/2 = 0.99 per pen

Then we find the price of 4 pens and subtract that from 4.75:

0.99 times 4 = 3.96

4.75 - 3.96 = 0.79 per ruler