Sean is
e years old. Glen is six times as old as Sean and Harry is 9 years younger than Glen.
- Express Harry's age in terms of e.
- Sean is 7 years old as of now. ln how many years' time will Harry be 3 times as old as Sean?
(a)
Sean's age =
e years
Glen's age = 6
e years
Harry's age = (6
e - 9) years
(b)
e = 7
Difference in age remains unchanged.
Difference in age between Harry and Sean
= (6
e - 9) -
e = 6
e -
e - 9
= 5
e - 9
= 5 x 7 - 9
= 26 years
Difference in the age when Harry will be 3 times as old as Sean
= 3 u - 1 u
= 2 u
2 u = 26
1 u = 26 ÷ 2 = 13
Number of years' time so Harry will be 3 times as old as Sean
= 13 - 7
= 6 years
Answer(s): (a) (6
e - 9) years; (b) 6 years
