Ivan and Andy had 10 chocolate bars each. Ivan gave 25% of his chocolate bars to Andy. After receiving the chocolate bars from Ivan, Andy gave 60% of his total chocolate bars to Nicole. How many chocolate bars had Andy left?
| |
Ivan |
Andy |
Nicole |
| Before |
100% |
100% |
|
| Change 1 |
- 25% |
+ 25% |
|
| After 1 |
75% |
125% |
|
| Change 2 |
|
- 75% |
+ 75% |
| After 2 |
|
50% |
|
Percentage of chocolate bars after Andy received from Ivan
= 100% + 25%
= 125%
Percentage of Andy's chocolate bars that Nicole had after receiving from Andy
= 60% x 125%
=
60100 x 125%
= 75%
Percentage of chocolate bars that Andy had left after giving to Nicole
= 125% - 75%
= 50%
100% = 10
Number of chocolate bars that Andy had left
= 50% x 10
=
50100 x 10
= 5
Answer(s): 5
