Kathy had $723 and Harry had $418 less than Kathy at first. After Kathy gave some money to Harry, Harry had 3 times as much as Kathy. How much did Kathy give to Harry?
| |
Kathy |
Harry |
Total |
| Before |
$723 |
$305 |
$1028 |
| Change |
- ? |
+ ? |
|
| After |
1 u |
3 u |
$1028 |
Amount that Kathy had = $723
Amount that Harry had
= 723 - 418
= $305
Total amount that Kathy and Harry had
= 723 + 305
= $1028
Amount that Kathy had in the end = 1 u
Amount that Harry had in the end = 3 u
Total amount that Kathy and Harry had
= 1 u + 3 u
= 4 u
As Kathy gave some money to Harry, the total amount that Harry and Kathy had at first and in the end remains unchanged.
4 u = 1028
1 u = 1028 ÷ 4 = 257
Amount that Kathy gave Harry
= 723 - 257
= $466
Answer(s): $466
