Peter and Ahmad had 20 mini cupcakes each. Peter gave 25% of his mini cupcakes to Ahmad. After receiving the mini cupcakes from Peter, Ahmad gave 60% of his total mini cupcakes to Fanny. How many mini cupcakes had Ahmad left?
| |
Peter |
Ahmad |
Fanny |
| Before |
100% |
100% |
|
| Change 1 |
- 25% |
+ 25% |
|
| After 1 |
75% |
125% |
|
| Change 2 |
|
- 75% |
+ 75% |
| After 2 |
|
50% |
|
Percentage of mini cupcakes after Ahmad received from Peter
= 100% + 25%
= 125%
Percentage of Ahmad's mini cupcakes that Fanny had after receiving from Ahmad
= 60% x 125%
=
60100 x 125%
= 75%
Percentage of mini cupcakes that Ahmad had left after giving to Fanny
= 125% - 75%
= 50%
100% = 20
Number of mini cupcakes that Ahmad had left
= 50% x 20
=
50100 x 20
= 10
Answer(s): 10
