Elijah and Charlie had the same number of stamps. Elijah gave away
34 of his stamps while Charlie gave away
35 of his stamps. Given that Elijah gave away 12 stamps more than Charlie, how many stamps did Elijah have at first?
| |
Elijah's stamps |
Charlie's stamps |
| Before |
4x5 =
20 u |
5x4 =
20 u |
| Change |
- 3x5 =
- 15 u |
- 3x4 =
- 12 u |
| After |
1x5 =
5 u |
2x4 =
8 u |
The number of cards that Elijah and Charlie each had at first is the same. Make the number of cards that Elijah and Charlie each had at first the same. LCM of 4 and 5 is 20.
Number of stamps that Elijah gave away more than Charlie
= 15 u - 12 u
= 3 u
3 u = 12
1 u = 12 ÷ 3 = 4
Number of stamps that Elijah had at first
= 20 u
= 20 x 4
= 80
Answer(s): 80
