Diana had $20 less than Opal at first. After Opal and Diana spent an equal amount of money, Diana had
38 as much as Opal. How much money did Diana have left?
| |
Diana |
Opal |
Difference |
| Before |
1 u |
1 u + $20 |
$20 |
| Change |
- 1 |
- 1 |
|
| After |
3 p |
8 p |
5 p |
Difference in the amounts between Opal and Diana
= 8 p - 3 p
= 5 p
Since both Opal and Diana spent an equal amount, the difference in the amounts that Opal and Diana had at first and in the end remains unchanged.
5 p = 20
1 p = 20 ÷ 5 = 4
Amount that Diana had left
= 3 p
= 3 x 4
= $12
Answer(s): $12
