Question

Haseena buys a mobile phone for £150. She then has to pay a fixed monthly charge for 18 months. After the 18 months, Haseena has spent a total of £366 on the mobile phone, including the cost of buying it. How much did she has to pay each month?

Answer 1

£17 per month

Explanation:

First, you have to get the monthly cost by itself (without the cost of the phone added to it), which you can do by subtracting

366-150,

which should give you 216. From there, you can divide

216/18 to get the monthly cost, which equals

17