Esther had $10 more than Abi at first. After Esther and Abi spent an equal amount of money, Abi had
35 as much as Esther. How much money did Esther have left?
| |
Esther |
Abi |
Difference |
| Before |
1 u + $10 |
1 u |
$10 |
| Change |
- 1 |
- 1 |
|
| After |
5 p |
3 p |
2 p |
Difference in the amounts between Esther and Abi
= 5 p - 3 p
= 2 p
Since both Esther and Abi spent an equal amount, the difference in the amounts that Esther and Abi had at first and in the end remains unchanged.
2 p = 10
1 p = 10 ÷ 2 = 5
Amount that Esther had left
= 5 p
= 5 x 5
= $25
Answer(s): $25
