Ken is 10 years older than Oscar. 8 years ago, the sum of their age was 64. How old is Ken now?
| |
Ken |
Oscar |
Difference |
Total |
| Before |
1 u + 10 |
1 u |
10 |
64 |
| Change |
+ 8 |
+ 8 |
|
+ 16 |
| After |
1 u + 18 |
1 u + 8 |
10 |
2 u + 26 |
The difference in the age between Ken and Oscar remains unchanged.
Oscar's current age = 1 u
Ken's current age = 1 u + 10
Combined age of Ken and Johny 8 years ago
= 1 u + 1 u + 10
= 2 u + 10
2 u + 10 = 64
2 u = 64 - 10
2 u = 54
1 u = 54 ÷ 2 = 27
Ken's current age
= 1 u + 18
= 27 + 18
= 45
Answer(s): 45
