Neave is
m years old. Japheth is five times as old as Neave and Ken is 4 years younger than Japheth.
- Express Ken's age in terms of m.
- Neave is 5 years old as of now. ln how many years' time will Ken be 3 times as old as Neave?
(a)
Neave's age =
m years
Japheth's age = 5
m years
Ken's age = (5
m - 4) years
(b)
m = 5
Difference in age remains unchanged.
Difference in age between Ken and Neave
= (5
m - 4) -
m = 5
m -
m - 4
= 4
m - 4
= 4 x 5 - 4
= 16 years
Difference in the age when Ken will be 3 times as old as Neave
= 3 u - 1 u
= 2 u
2 u = 16
1 u = 16 ÷ 2 = 8
Number of years' time so Ken will be 3 times as old as Neave
= 8 - 5
= 3 years
Answer(s): (a) (5
m - 4) years; (b) 3 years
