Elijah is 7 years old now. His cousin is 30 years older than him. How old will Elijah be when his age is
58 of his cousin's age?
| |
Elijah |
His cousin |
Difference |
| Before |
|
|
30 |
| Change |
+ ? |
+ ? |
|
| After |
5 u |
8 u |
3 u |
The difference in the age between Elijah and his cousin at first and in the end remains unchanged.
Number of years that his cousin is older than Elijah
= 8 u - 5 u
= 3 u
3 u = 30
1 u = 30 ÷ 3 = 10
Elijah's age when his age is
58 of his cousin's age
= 5 u
= 5 x 10
= 50
Answer(s): 50
