Bobby is 10 years older than Nick. 11 years ago, the sum of their age was 64. How old is Nick now?
| |
Bobby |
Nick |
Difference |
Total |
| Before |
1 u + 10 |
1 u |
10 |
64 |
| Change |
+ 11 |
+ 11 |
|
+ 22 |
| After |
1 u + 21 |
1 u + 11 |
10 |
2 u + 32 |
The difference in the age between Bobby and Nick remains unchanged.
Nick's current age = 1 u
Bobby's current age = 1 u + 10
Combined age of Bobby and Johny 11 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
Nick's current age
= 1 u + 11
= 27 + 11
= 38
Answer(s): 38
