Daniel's age is
16 of his uncle's. His uncle will be 70 years old in 4 years' time. In how many years' time will Daniel's age be
38 of his uncle's?
|
Daniel |
His uncle |
Difference |
Before |
1 u |
6 u |
55 |
Change |
+ 4 |
+ 4 |
|
After |
|
70 |
|
His uncle's current age
= 70 - 4
= 66
6 u = 66
1 u = 66 ÷ 6 = 11
Daniel's current age = 11
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 11
= 55
|
Daniel |
His uncle |
Difference |
Before |
1 u |
6 u |
55 |
Change |
+ ? |
+ ? |
|
After |
3 p |
8 p |
5 p |
5 p = 55
1 p = 55 ÷ 5 = 11
Daniel's age when he will be
38 of his uncle's age
= 3 p
= 3 x 11
= 33
Number of years' time when Daniel's age will be
38 of his uncle's age
= 3 p - 1 u
= 33 - 11
= 22
Answer(s): 22