Caden is
s years old. Bobby is six times as old as Caden and Simon is 15 years younger than Bobby.
- Express Simon's age in terms of s.
- Caden is 9 years old as of now. ln how many years' time will Simon be 3 times as old as Caden?
(a)
Caden's age =
s years
Bobby's age = 6
s years
Simon's age = (6
s - 15) years
(b)
s = 9
Difference in age remains unchanged.
Difference in age between Simon and Caden
= (6
s - 15) -
s = 6
s -
s - 15
= 5
s - 15
= 5 x 9 - 15
= 30 years
Difference in the age when Simon will be 3 times as old as Caden
= 3 u - 1 u
= 2 u
2 u = 30
1 u = 30 ÷ 2 = 15
Number of years' time so Simon will be 3 times as old as Caden
= 15 - 9
= 6 years
Answer(s): (a) (6
s - 15) years; (b) 6 years
