Roshel had $160 more than Zara. Roshel gave
35 of her money to Zara. Zara then gave 25% of her money to Roshel. In the end, Zara had $138 more than Roshel. How much did Roshel have at first?
| |
Roshel |
Zara |
Comparing Roshel
and Zara at first |
160 more |
|
| Before |
5 u |
+ 160 |
5 u |
|
| Change 1 |
- 3 u |
- 96 |
+ 3 u |
+ 96 |
| After 1 |
2 u |
+ 64 |
8 u |
+ 96 |
| Change 2 |
+ 2 u |
+ 24 |
- 2 u |
- 24 |
| After 2 |
4 u |
+ 88 |
6 u |
+ 72 |
35 x 160= 96
160 - 96 = 64
25% x 8 u
=
25100 x 8 u
= 2 u
25% x 96
=
25100 x 96
= 24
96 - 24 = 72
64 + 24 = 88
If Roshel received another $138 in the end, Roshel and Zara would have the same amount of money.
6 u + 72 = 4 u + 88 + 138
6 u - 4 u = 88 + 138 - 72
2 u = 154
1 u = 154 ÷ 2 = 77
Amount that Roshel had at first
= 5 u + 160
= 5 x 77 + 160
= 385 + 160
= $545
Answer(s): $545
