John and Daniel had 10 mini cupcakes each. John gave 40% of his mini cupcakes to Daniel. After receiving the mini cupcakes from John, Daniel gave 50% of his total mini cupcakes to Fiona. How many mini cupcakes had Daniel left?
| |
John |
Daniel |
Fiona |
| Before |
100% |
100% |
|
| Change 1 |
- 40% |
+ 40% |
|
| After 1 |
60% |
140% |
|
| Change 2 |
|
- 70% |
+ 70% |
| After 2 |
|
70% |
|
Percentage of mini cupcakes after Daniel received from John
= 100% + 40%
= 140%
Percentage of Daniel's mini cupcakes that Fiona had after receiving from Daniel
= 50% x 140%
=
50100 x 140%
= 70%
Percentage of mini cupcakes that Daniel had left after giving to Fiona
= 140% - 70%
= 70%
100% = 10
Number of mini cupcakes that Daniel had left
= 70% x 10
=
70100 x 10
= 7
Answer(s): 7
