Oscar is 6 years old now. His cousin is 14 years older than him. How old will Oscar be when his age is
79 of his cousin's age?
| |
Oscar |
His cousin |
Difference |
| Before |
|
|
14 |
| Change |
+ ? |
+ ? |
|
| After |
7 u |
9 u |
2 u |
The difference in the age between Oscar and his cousin at first and in the end remains unchanged.
Number of years that his cousin is older than Oscar
= 9 u - 7 u
= 2 u
2 u = 14
1 u = 14 ÷ 2 = 7
Oscar's age when his age is
79 of his cousin's age
= 7 u
= 7 x 7
= 49
Answer(s): 49
