Emma had $126 less than Yoko. Yoko spent
47 of her money and Emma spent
67 of her money. In the end, Yoko had 4 times as much as Emma. Find the amount of money Yoko had at first.
| |
Yoko |
Emma |
Comparing Yoko
and Emma at first |
$126 more |
|
| Before |
7x4 =
28 u |
7x3 =
21 u |
| Change |
- 4x4 =
- 16 u |
- 6x3 =
- 18 u |
| After |
3x4 =
12 u |
1x3 =
3 u |
Comparing Yoko
and Emma in the end |
4x3 =
12 u |
1x3 =
3 u |
The amount that Yoko had in the end is repeated. Make the amount that Yoko had in the end the same. LCM of 4 and 3 is 12.
Amount that Emma had less than Yoko
= 28 u - 21 u
= 7 u
7 u = 126
1 u = 126 ÷ 7 = 18
Amount that Yoko had at first
= 28 u
= 28 x 18
= $504
Answer(s): $504
