David and Tommy both received an allowance from their father. David initially received 35% of the money. He then gave Tommy $34, and was left with
13 as much money as Tommy. What was the total amount of money given to the two boys?
| |
David |
Tommy |
Total |
| Before |
7x1 =
7 u |
13x1 =
13 u |
20x1 =
20 u |
| Change |
- 34 |
+ 34 |
|
| After |
1x5 =
5 u |
3x5 =
15 u |
4x5 =
20 u |
The total amount of money remains the same.
35% =
35100 =
720Amount that David gave to Tommy
= 7 u - 5 u
= 2 u
2 u = 34
1 u = 34 ÷ 2 = 17
Total amount of money given to the two boys
= 20 u
= 20 x 17
= $340
Answer(s): $340
