John and Sam both received an allowance from their father. John initially received 35% of the money. He then gave Sam $10, and was left with
13 as much money as Sam. What was the total amount of money given to the two boys?
| |
John |
Sam |
Total |
| Before |
7x1 =
7 u |
13x1 =
13 u |
20x1 =
20 u |
| Change |
- 10 |
+ 10 |
|
| After |
1x5 =
5 u |
3x5 =
15 u |
4x5 =
20 u |
The total amount of money remains the same.
35% =
35100 =
720Amount that John gave to Sam
= 7 u - 5 u
= 2 u
2 u = 10
1 u = 10 ÷ 2 = 5
Total amount of money given to the two boys
= 20 u
= 20 x 5
= $100
Answer(s): $100
