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