Flynn and Vaidev had $720 altogether. Vaidev gave
25 of his money to Flynn. After that, Flynn gave
35 of his money to Vaidev. In the end, Flynn had
15 of the total sum of money. How much did Flynn have at first?
| |
Vaidev |
Flynn |
Total |
| Before 1 |
5 p |
? |
$720 |
| Change 1 |
- 2 p |
+ 2 p |
|
| After 1 |
3 p |
5 u |
|
| Before 2 |
3 p |
5x1 =
5 u |
$720 |
| Change 2 |
+ 3x1 =
+ 3 u |
- 3x1 =
- 3 u |
|
| After 2 |
|
2x1 =
2 u |
$720 |
Comparing between
Vaidev and Flynn
in the end |
4x2 =
8 u |
1x2 =
2 u |
$720 |
The amount that Flynn had in the end is the repeated. Make the amount that Flynn had in the end the same. LCM of 2 and 1 is 2.
10 u = 720
1 u = 720 ÷ 10 = 72
5 u = 5 x 72 = 360
3 p = 720 - 360 = 360
1 p = 360 ÷ 3 = 120
Amount that Vaidev had at first
= 5 p
= 5 x 120
= $600
Amount that Flynn had at first
= 720 - 600
= $120
Answer(s): $120
