Riordan is 7 years older than Fabian. 12 years ago, the sum of their age was 61. How old is Riordan now?
| |
Riordan |
Fabian |
Difference |
Total |
| Before |
1 u + 7 |
1 u |
7 |
61 |
| Change |
+ 12 |
+ 12 |
|
+ 24 |
| After |
1 u + 19 |
1 u + 12 |
7 |
2 u + 31 |
The difference in the age between Riordan and Fabian remains unchanged.
Fabian's current age = 1 u
Riordan's current age = 1 u + 7
Combined age of Riordan and Johny 12 years ago
= 1 u + 1 u + 7
= 2 u + 7
2 u + 7 = 61
2 u = 61 - 7
2 u = 54
1 u = 54 ÷ 2 = 27
Riordan's current age
= 1 u + 19
= 27 + 19
= 46
Answer(s): 46
