Question 17
This year, the elder brother is 12 years old and the younger brother is 7 years old. How old will each brother be when the sum of their ages is 35? Show your reasoning.
Printed scoring note: each Part III question is worth 10 points; a simplified solution is required and is worth 4 of those points.
Printed scoring note: each Part III question is worth 10 points; a simplified solution is required and is worth 4 of those points.