Archie is 6 years older than Liam. 8 years ago, the sum of their age was 70. How old is Liam now?
| |
Archie |
Liam |
Difference |
Total |
| Before |
1 u + 6 |
1 u |
6 |
70 |
| Change |
+ 8 |
+ 8 |
|
+ 16 |
| After |
1 u + 14 |
1 u + 8 |
6 |
2 u + 22 |
The difference in the age between Archie and Liam remains unchanged.
Liam's current age = 1 u
Archie's current age = 1 u + 6
Combined age of Archie and Johny 8 years ago
= 1 u + 1 u + 6
= 2 u + 6
2 u + 6 = 70
2 u = 70 - 6
2 u = 64
1 u = 64 ÷ 2 = 32
Liam's current age
= 1 u + 8
= 32 + 8
= 40
Answer(s): 40
