Gabriel's age is
34 his brother's age now. 10 years ago, his age was
13 that of his brother's. How old is Gabriel now?
| |
Gabriel |
Gabriel's brother |
Difference |
| Before |
1x1 =
1 u |
3x1 =
3 u |
2x1 =
2 u |
| Change |
+ 10 |
+ 10 |
|
| After |
3x2 =
6 u |
4x2 =
8 u |
1x2 =
2 u |
The difference in the age between Gabriel and Gabriel's brother remains unchanged. Make the difference in age the same. LCM of 2 and 1 is 2.
Increase in the age of Gabriel
= 6 u - 1 u
= 5 u
5 u = 10
1 u = 10 ÷ 5 = 2
Gabriel's age now
= 6 u
= 6 x 2
= 12
Answer(s): 12
