Question

Four numbers are in the ratio 1 : 2 : 3 : 4.

The range of the numbers is 27.
Work out the sum of the numbers.

Answer 1

90

Explanation:

9:18:27:36 has a range of 27 (36-9=27) since each number in the ratio gets multiplied by 9. Therefore, the sum of the numbers is 9+18+27+36 = 90