Question

Together, an orange and an apple cost 80p.The apple costs 10p more than the orange.how much do the apple and the orange cost ?

Answer 1

Apple is `£45`
Orange is `£35`

Explanation:

when there are two different numbers which are going to add to make another number with only 10 difference, you know that the answers are going to be around half of the total (`40`) in this case, so you just do trial and error until you find the right answer.

Hopefully this helped...