Nicole had
23 as much money as Zoe. Nicole received another $138 from her mother. In the end, Nicole's money became 2
15 of what Zoe had. How much did Nicole have at first?
| |
Nicole |
Zoe |
| Before |
2x5 =
10 u |
3x5 =
15 u |
| Change |
+ $138 |
|
| After |
11x3 =
33 u |
5x3 =
15 u |
2
15 =
115The amount that Zoe had at first and in the end remains unchanged. Make the amount that Zoe had the same. LCM of 5 and 3 is 15.
Amount that Nicole received
= 33 u - 10 u
= 23 u
23 u = 138
1 u = 138 ÷ 23 = 6
Amount that Nicole had at first
= 10 u
= 10 x 6
= $60
Answer(s): $60
