Gabriel is 9 years older than John. 8 years ago, the sum of their age was 63. How old is Gabriel now?
| |
Gabriel |
John |
Difference |
Total |
| Before |
1 u + 9 |
1 u |
9 |
63 |
| Change |
+ 8 |
+ 8 |
|
+ 16 |
| After |
1 u + 17 |
1 u + 8 |
9 |
2 u + 25 |
The difference in the age between Gabriel and John remains unchanged.
John's current age = 1 u
Gabriel's current age = 1 u + 9
Combined age of Gabriel and Johny 8 years ago
= 1 u + 1 u + 9
= 2 u + 9
2 u + 9 = 63
2 u = 63 - 9
2 u = 54
1 u = 54 ÷ 2 = 27
Gabriel's current age
= 1 u + 17
= 27 + 17
= 44
Answer(s): 44
