Carl and Riordan received a total of $550. After Carl spent
67 of his money and Riordan spent
56 of his money, Riordan had 3 times as much money as Carl. How much money did Riordan have at first?
| |
Carl |
Riordan |
Total |
Before |
7 u |
6x3 =
18 u |
25 u |
Change |
- 6 u |
- 5x3 =
- 15 u |
|
After |
1 u |
1x3 =
3 u |
|
Comparing Carl
and Riordan in the end |
1 u |
3 u |
|
The amount that Riordan had in the end is the same. Make the amount that Riordan had in the end the same. LCM of 1 and 3 is 3.
Total amount that Riordan and Carl had at first
= 7 u + 18 u
= 25 u
25 u = 550
1 u = 550 ÷ 25 = 22
Amount that Riordan had at first
= 18 u
= 18 x 22
= $396
Answer(s): $396
