Julian and Zeph had 60 mini cupcakes each. Julian gave 20% of his mini cupcakes to Zeph. After receiving the mini cupcakes from Julian, Zeph gave 50% of his total mini cupcakes to Kathy. How many mini cupcakes had Zeph left?
| |
Julian |
Zeph |
Kathy |
| Before |
100% |
100% |
|
| Change 1 |
- 20% |
+ 20% |
|
| After 1 |
80% |
120% |
|
| Change 2 |
|
- 60% |
+ 60% |
| After 2 |
|
60% |
|
Percentage of mini cupcakes after Zeph received from Julian
= 100% + 20%
= 120%
Percentage of Zeph's mini cupcakes that Kathy had after receiving from Zeph
= 50% x 120%
=
50100 x 120%
= 60%
Percentage of mini cupcakes that Zeph had left after giving to Kathy
= 120% - 60%
= 60%
100% = 60
Number of mini cupcakes that Zeph had left
= 60% x 60
=
60100 x 60
= 36
Answer(s): 36
