Shannon had 84 more coins than Elyse. After Elyse gave away
25 of her coins, Shannon had four times as many coins as Elyse. How many coins did Elyse have at first?
| |
Shannon |
Elyse |
Comparing Shannon and
Elyse at first |
84 more |
|
| Before |
12 u |
5 u |
| Change |
|
- 2 u |
| After |
12 u |
3 u |
Comparing Shannon and
Elyse in the end |
4x3 =
12 u |
1x3 =
3 u |
Number of coins that Elyse had in the end is repeated. Make the number of coins that Elyse had in the end the same. LCM of 1 and 3 is 3.
Number of coins that Shannon had at first = 12 u
Number of coins that Shannon had more than Elyse at first
= 12 u - 5 u
= 7 u
7 u = 84
1 u = 84 ÷ 7 = 12
Number of coins that Elyse had at first
= 5 u
= 5 x 12
= 60
Answer(s): 60
