Daniel's age is
16 of his uncle's. His uncle will be 68 years old in 8 years' time. In how many years' time will Daniel's age be
27 of his uncle's?
|
Daniel |
His uncle |
Difference |
Before |
1 u |
6 u |
50 |
Change |
+ 8 |
+ 8 |
|
After |
|
68 |
|
His uncle's current age
= 68 - 8
= 60
6 u = 60
1 u = 60 ÷ 6 = 10
Daniel's current age = 10
The difference in the age between Daniel and his uncle remains the same.
Difference in the age between Daniel and his uncle
= 6 u - 1 u
= 5 u
= 5 x 10
= 50
|
Daniel |
His uncle |
Difference |
Before |
1 u |
6 u |
50 |
Change |
+ ? |
+ ? |
|
After |
2 p |
7 p |
5 p |
5 p = 50
1 p = 50 ÷ 5 = 10
Daniel's age when he will be
27 of his uncle's age
= 2 p
= 2 x 10
= 20
Number of years' time when Daniel's age will be
27 of his uncle's age
= 2 p - 1 u
= 20 - 10
= 10
Answer(s): 10