Aunt Mary is now 5 times as old as Eva. 6 years later, Aunt will be 2 times as old as Eva. How old will Aunt Mary be 4 years from now?
| |
Aunt Mary |
Eva |
Difference |
| Before |
5 u |
1 u |
4 u |
| Change |
+ 6 |
+ 6 |
|
| After |
2x4 =
8 u |
1x4 =
4 u |
1x4 =
4 u |
The difference in the age between Aunt Mary and Eva remains unchanged. Make the difference in age the same. LCM of 1 and 4 is 4.
Increase in Aunt Mary's age
= 8 u - 5 u
= 3 u
3 u = 6
1 u = 6 ÷ 3 = 2
Aunt Mary's age 4 years from now
= 5 u + 4
= 10 + 4
= 14
Answer(s): 14
