Min had $84 more than Raeann. Min spent
47 of her money and Raeann spent
78 of her money. In the end, Min had 4 times as much as Raeann. Find the amount of money Raeann had at first.
| |
Min |
Raeann |
Comparing Min
and Raeann at first |
$84 more |
|
| Before |
7x4 =
28 u |
8x3 =
24 u |
| Change |
- 4x4 =
- 16 u |
- 7x3 =
- 21 u |
| After |
3x4 =
12 u |
1x3 =
3 u |
Comparing Min
and Raeann in the end |
4x3 =
12 u |
1x3 =
3 u |
The amount that Min had in the end is repeated. Make the amount that Min had in the end the same. LCM of 4 and 3 is 12.
Amount that Min had more than Raeann
= 28 u - 24 u
= 4 u
4 u = 84
1 u = 84 ÷ 4 = 21
Amount that Raeann had at first
= 24 u
= 24 x 21
= $504
Answer(s): $504
