Risa had $4 less than Min at first. After Min and Risa spent an equal amount of money, Risa had
35 as much as Min. How much money did Risa have left?
| |
Risa |
Min |
Difference |
| Before |
1 u |
1 u + $4 |
$4 |
| Change |
- 1 |
- 1 |
|
| After |
3 p |
5 p |
2 p |
Difference in the amounts between Min and Risa
= 5 p - 3 p
= 2 p
Since both Min and Risa spent an equal amount, the difference in the amounts that Min and Risa had at first and in the end remains unchanged.
2 p = 4
1 p = 4 ÷ 2 = 2
Amount that Risa had left
= 3 p
= 3 x 2
= $6
Answer(s): $6
