Xavier is 12 years older than Billy. 14 years ago, the sum of their age was 70. How old is Xavier now?
| |
Xavier |
Billy |
Difference |
Total |
| Before |
1 u + 12 |
1 u |
12 |
70 |
| Change |
+ 14 |
+ 14 |
|
+ 28 |
| After |
1 u + 26 |
1 u + 14 |
12 |
2 u + 40 |
The difference in the age between Xavier and Billy remains unchanged.
Billy's current age = 1 u
Xavier's current age = 1 u + 12
Combined age of Xavier and Johny 14 years ago
= 1 u + 1 u + 12
= 2 u + 12
2 u + 12 = 70
2 u = 70 - 12
2 u = 58
1 u = 58 ÷ 2 = 29
Xavier's current age
= 1 u + 26
= 29 + 26
= 55
Answer(s): 55
