Roshel had $225 more than Tammy. Roshel gave
23 of her money to Tammy. Tammy then gave 20% of her money to Roshel. In the end, Tammy had $183 more than Roshel. How much did Roshel have at first?
| |
Roshel |
Tammy |
Comparing Roshel
and Tammy at first |
225 more |
|
| Before |
3 u |
+ 225 |
3 u |
|
| Change 1 |
- 2 u |
- 150 |
+ 2 u |
+ 150 |
| After 1 |
1 u |
+ 75 |
5 u |
+ 150 |
| Change 2 |
+ 1 u |
+ 30 |
- 1 u |
- 30 |
| After 2 |
2 u |
+ 105 |
4 u |
+ 120 |
23 x 225= 150
225 - 150 = 75
20% x 5 u
=
20100 x 5 u
= 1 u
20% x 150
=
20100 x 150
= 30
150 - 30 = 120
75 + 30 = 105
If Roshel received another $183 in the end, Roshel and Tammy would have the same amount of money.
4 u + 120 = 2 u + 105 + 183
4 u - 2 u = 105 + 183 - 120
2 u = 168
1 u = 168 ÷ 2 = 84
Amount that Roshel had at first
= 3 u + 225
= 3 x 84 + 225
= 252 + 225
= $477
Answer(s): $477
