Luis and Owen both received an allowance from their father. Luis initially received 30% of the money. He then gave Owen $12, and was left with
15 as much money as Owen. What was the total amount of money given to the two boys?
|
Luis |
Owen |
Total |
Before |
3x3 = 9 u |
7x3 = 21 u |
10x3 = 30 u |
Change |
- 12 |
+ 12 |
|
After |
1x5 = 5 u |
5x5 = 25 u |
6x5 = 30 u |
The total amount of money remains the same.
30% =
30100 =
310Amount that Luis gave to Owen
= 9 u - 5 u
= 4 u
4 u = 12
1 u = 12 ÷ 4 = 3
Total amount of money given to the two boys
= 30 u
= 30 x 3
= $90
Answer(s): $90