Bryan is
a years old. Rael is six times as old as Bryan and Harry is 7 years younger than Rael.
- Express Harry's age in terms of a.
- Bryan is 7 years old as of now. ln how many years' time will Harry be 3 times as old as Bryan?
(a)
Bryan's age =
a years
Rael's age = 6
a years
Harry's age = (6
a - 7) years
(b)
a = 7
Difference in age remains unchanged.
Difference in age between Harry and Bryan
= (6
a - 7) -
a = 6
a -
a - 7
= 5
a - 7
= 5 x 7 - 7
= 28 years
Difference in the age when Harry will be 3 times as old as Bryan
= 3 u - 1 u
= 2 u
2 u = 28
1 u = 28 ÷ 2 = 14
Number of years' time so Harry will be 3 times as old as Bryan
= 14 - 7
= 7 years
Answer(s): (a) (6
a - 7) years; (b) 7 years
