George and David had 80 caramel apples each. George gave 30% of his caramel apples to David. After receiving the caramel apples from George, David gave 50% of his total caramel apples to Kathy. How many caramel apples had David left?
| |
George |
David |
Kathy |
| Before |
100% |
100% |
|
| Change 1 |
- 30% |
+ 30% |
|
| After 1 |
70% |
130% |
|
| Change 2 |
|
- 65% |
+ 65% |
| After 2 |
|
65% |
|
Percentage of caramel apples after David received from George
= 100% + 30%
= 130%
Percentage of David's caramel apples that Kathy had after receiving from David
= 50% x 130%
=
50100 x 130%
= 65%
Percentage of caramel apples that David had left after giving to Kathy
= 130% - 65%
= 65%
100% = 80
Number of caramel apples that David had left
= 65% x 80
=
65100 x 80
= 52
Answer(s): 52
