Eric is
g years old. Tom is six times as old as Eric and Sean is 8 years younger than Tom.
- Express Sean's age in terms of g.
- Eric is 10 years old as of now. ln how many years' time will Sean be 3 times as old as Eric?
(a)
Eric's age =
g years
Tom's age = 6
g years
Sean's age = (6
g - 8) years
(b)
g = 10
Difference in age remains unchanged.
Difference in age between Sean and Eric
= (6
g - 8) -
g = 6
g -
g - 8
= 5
g - 8
= 5 x 10 - 8
= 42 years
Difference in the age when Sean will be 3 times as old as Eric
= 3 u - 1 u
= 2 u
2 u = 42
1 u = 42 ÷ 2 = 21
Number of years' time so Sean will be 3 times as old as Eric
= 21 - 10
= 11 years
Answer(s): (a) (6
g - 8) years; (b) 11 years
