Will is
f years old. Asher is five times as old as Will and Zeph is 6 years younger than Asher.
- Express Zeph's age in terms of f.
- Will is 7 years old as of now. ln how many years' time will Zeph be 3 times as old as Will?
(a)
Will's age =
f years
Asher's age = 5
f years
Zeph's age = (5
f - 6) years
(b)
f = 7
Difference in age remains unchanged.
Difference in age between Zeph and Will
= (5
f - 6) -
f = 5
f -
f - 6
= 4
f - 6
= 4 x 7 - 6
= 22 years
Difference in the age when Zeph will be 3 times as old as Will
= 3 u - 1 u
= 2 u
2 u = 22
1 u = 22 ÷ 2 = 11
Number of years' time so Zeph will be 3 times as old as Will
= 11 - 7
= 4 years
Answer(s): (a) (5
f - 6) years; (b) 4 years
