Penelope had $14 more than Eva at first. After Penelope and Eva spent an equal amount of money, Eva had
310 as much as Penelope. How much money did Penelope have left?
| |
Penelope |
Eva |
Difference |
| Before |
1 u + $14 |
1 u |
$14 |
| Change |
- 1 |
- 1 |
|
| After |
10 p |
3 p |
7 p |
Difference in the amounts between Penelope and Eva
= 10 p - 3 p
= 7 p
Since both Penelope and Eva spent an equal amount, the difference in the amounts that Penelope and Eva had at first and in the end remains unchanged.
7 p = 14
1 p = 14 ÷ 7 = 2
Amount that Penelope had left
= 10 p
= 10 x 2
= $20
Answer(s): $20
