Daniel's age is
15 of his uncle's. His uncle will be 34 years old in 4 years' time. In how many years' time will Daniel's age be
47 of his uncle's?
|
Daniel |
His uncle |
Difference |
Before |
1 u |
5 u |
24 |
Change |
+ 4 |
+ 4 |
|
After |
|
34 |
|
His uncle's current age
= 34 - 4
= 30
5 u = 30
1 u = 30 ÷ 5 = 6
Daniel's current age = 6
The difference in the age between Daniel and his uncle remains the same.
Difference in the age between Daniel and his uncle
= 5 u - 1 u
= 4 u
= 4 x 6
= 24
|
Daniel |
His uncle |
Difference |
Before |
1 u |
5 u |
24 |
Change |
+ ? |
+ ? |
|
After |
4 p |
7 p |
3 p |
3 p = 24
1 p = 24 ÷ 3 = 8
Daniel's age when he will be
47 of his uncle's age
= 4 p
= 4 x 8
= 32
Number of years' time when Daniel's age will be
47 of his uncle's age
= 4 p - 1 u
= 32 - 8
= 24
Answer(s): 24