Xandra had
34 as much money as Emma. Xandra received another $168 from her auntie. In the end, Xandra's money became 1
45 of what Emma had. How much did Xandra have at first?
| |
Xandra |
Emma |
| Before |
3x5 =
15 u |
4x5 =
20 u |
| Change |
+ $168 |
|
| After |
9x4 =
36 u |
5x4 =
20 u |
1
45 =
95The amount that Emma had at first and in the end remains unchanged. Make the amount that Emma had the same. LCM of 5 and 4 is 20.
Amount that Xandra received
= 36 u - 15 u
= 21 u
21 u = 168
1 u = 168 ÷ 21 = 8
Amount that Xandra had at first
= 15 u
= 15 x 8
= $120
Answer(s): $120
