Question

A shop has an offer on jumpers as shown below. Buy 4 jumpers and get 1 free! Kara gets 5 jumpers. After applying the offer, each one ends up costing £5.20 per jumper. What is the regular cost of one jumper when not in this offer?

Answer 1

Answer: £6.50

Explanation:

Let the cost of one jumper be x, and since Kara buys 5 jumpers, she pays for 4 and gets 1 free.

Therefore, she effectively pays for 4 jumpers. Now we can form the equation to find the value of x: (4x / 5) = (5.20)

Now solving the equation, we get; x = £6.50

Hence, the regular cost of one jumper when not in this offer is £6.50.