Question

Melissa is 13 years old, Becky is 12 years old and Daniel is 10 years old. Melissa, Becky and Daniel share £28 in the ratio of their ages. Becky gives a third of her share to her mother. How much should Becky now have?

Answer 1

13+12+10=35
£28/35=0.8
0.8x12(for becky)=9.6

so one third of 9.6 is 3.2
therefore 9.6-3.2=6.4
becky have only £6.40 left

Answer 2

13+12+10=35 years altogether. So this means every year has 0.8 pounds. So Mellisa has 10.4, Becky has 9.6 and Daniel has 8 (proof: 10.4+9.6+8=28). If Becky has 9.6 and her mother takes one third, becky is left with 3.2 (proof: 3.2+3.2+3.2=9.6)