Aunt Cindy is now 5 times as old as Abi. 6 years later, Aunt will be 2 times as old as Abi. How old will Aunt Cindy be 5 years from now?
|
Aunt Cindy |
Abi |
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 Cindy and Abi remains unchanged. Make the difference in age the same. LCM of 1 and 4 is 4.
Increase in Aunt Cindy's age
= 8 u - 5 u
= 3 u
3 u = 6
1 u = 6 ÷ 3 = 2
Aunt Cindy's age 5 years from now
= 5 u + 5
= 10 + 5
= 15
Answer(s): 15