Zoe had $826 and Ahmad had $537 less than Zoe at first. After Zoe gave some money to Ahmad, Ahmad had 4 times as much as Zoe. How much did Zoe give to Ahmad?
| |
Zoe |
Ahmad |
Total |
| Before |
$826 |
$289 |
$1115 |
| Change |
- ? |
+ ? |
|
| After |
1 u |
4 u |
$1115 |
Amount that Zoe had = $826
Amount that Ahmad had
= 826 - 537
= $289
Total amount that Zoe and Ahmad had
= 826 + 289
= $1115
Amount that Zoe had in the end = 1 u
Amount that Ahmad had in the end = 4 u
Total amount that Zoe and Ahmad had
= 1 u + 4 u
= 5 u
As Zoe gave some money to Ahmad, the total amount that Ahmad and Zoe had at first and in the end remains unchanged.
5 u = 1115
1 u = 1115 ÷ 5 = 223
Amount that Zoe gave Ahmad
= 826 - 223
= $603
Answer(s): $603
