Daniel's age is
19 of his uncle's. His uncle will be 61 years old in 7 years' time. In how many years' time will Daniel's age be
37 of his uncle's?
|
Daniel |
His uncle |
Difference |
Before |
1 u |
9 u |
48 |
Change |
+ 7 |
+ 7 |
|
After |
|
61 |
|
His uncle's current age
= 61 - 7
= 54
9 u = 54
1 u = 54 ÷ 9 = 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
= 9 u - 1 u
= 8 u
= 8 x 6
= 48
|
Daniel |
His uncle |
Difference |
Before |
1 u |
9 u |
48 |
Change |
+ ? |
+ ? |
|
After |
3 p |
7 p |
4 p |
4 p = 48
1 p = 48 ÷ 4 = 12
Daniel's age when he will be
37 of his uncle's age
= 3 p
= 3 x 12
= 36
Number of years' time when Daniel's age will be
37 of his uncle's age
= 3 p - 1 u
= 36 - 12
= 24
Answer(s): 24