Hilda had $10 less than Risa at first. After Risa and Hilda spent an equal amount of money, Hilda had
38 as much as Risa. How much money did Hilda have left?
| |
Hilda |
Risa |
Difference |
| Before |
1 u |
1 u + $10 |
$10 |
| Change |
- 1 |
- 1 |
|
| After |
3 p |
8 p |
5 p |
Difference in the amounts between Risa and Hilda
= 8 p - 3 p
= 5 p
Since both Risa and Hilda spent an equal amount, the difference in the amounts that Risa and Hilda had at first and in the end remains unchanged.
5 p = 10
1 p = 10 ÷ 5 = 2
Amount that Hilda had left
= 3 p
= 3 x 2
= $6
Answer(s): $6
