Gem had 18 more caramel apples than Archie at first. After Archie had eaten 18 of his caramel apples, Gem had 4 times as many caramel apples as Archie. How many caramel apples did Gem and Archie have in total at first?
| |
Gem |
Archie |
Total |
| Before |
1 u + 18 + 18 |
1 u + 18 |
5 u + 18 |
| Change |
|
- 18 |
|
| After |
4 u |
1 u |
|
The number of caramel apples that Gem had at first remains unchanged.
4 u = 1 u + 18 + 18
4 u - 1 u = 36
3 u = 36
1 u = 36 ÷ 3 = 12
Number of caramel apples that they had at first
= 5 u + 18
= 5 x 12 + 18
= 60 + 18
= 78
Answer(s): 78
