Question

Frank, mary and seth shared some sweets in the ratio 4;5;7

Seth got 18 more sweets than frank
work oout the total number of sweets they shared

Answer 1

total = 96 sweets

Explanation:

sweets shared in the ratio 4 : 5 : 7 = 4x : 5x : 7x ( x is a multiplier )

Seth got 18 more sweets than Frank , that is

7x = 4x + 18 ( subtract 4x from both sides )

3x = 18 ( divide both sides by 3 )

x = 6

Then

total = 4x + 5x + 7x = 16x = 16 × 6 = 96 sweets