Lynn had $840 less than Kimberly. Kimberly spent
58 of her money and Lynn spent
34 of her money. In the end, Kimberly had 4 times as much as Lynn. Find the amount of money Kimberly had at first.
| |
Kimberly |
Lynn |
Comparing Kimberly
and Lynn at first |
$840 more |
|
| Before |
8x4 =
32 u |
4x3 =
12 u |
| Change |
- 5x4 =
- 20 u |
- 3x3 =
- 9 u |
| After |
3x4 =
12 u |
1x3 =
3 u |
Comparing Kimberly
and Lynn in the end |
4x3 =
12 u |
1x3 =
3 u |
The amount that Kimberly had in the end is repeated. Make the amount that Kimberly had in the end the same. LCM of 4 and 3 is 12.
Amount that Lynn had less than Kimberly
= 32 u - 12 u
= 20 u
20 u = 840
1 u = 840 ÷ 20 = 42
Amount that Kimberly had at first
= 32 u
= 32 x 42
= $1344
Answer(s): $1344
