Jade had $768 and Riordan had $438 less than Jade at first. After Jade gave some money to Riordan, Riordan had 2 times as much as Jade. How much did Jade give to Riordan?
| |
Jade |
Riordan |
Total |
| Before |
$768 |
$330 |
$1098 |
| Change |
- ? |
+ ? |
|
| After |
1 u |
2 u |
$1098 |
Amount that Jade had = $768
Amount that Riordan had
= 768 - 438
= $330
Total amount that Jade and Riordan had
= 768 + 330
= $1098
Amount that Jade had in the end = 1 u
Amount that Riordan had in the end = 2 u
Total amount that Jade and Riordan had
= 1 u + 2 u
= 3 u
As Jade gave some money to Riordan, the total amount that Riordan and Jade had at first and in the end remains unchanged.
3 u = 1098
1 u = 1098 ÷ 3 = 366
Amount that Jade gave Riordan
= 768 - 366
= $402
Answer(s): $402
