Sean and Cody had 30 candy canes each. Sean gave 40% of his candy canes to Cody. After receiving the candy canes from Sean, Cody gave 50% of his total candy canes to Mary. How many candy canes had Cody left?
| |
Sean |
Cody |
Mary |
| Before |
100% |
100% |
|
| Change 1 |
- 40% |
+ 40% |
|
| After 1 |
60% |
140% |
|
| Change 2 |
|
- 70% |
+ 70% |
| After 2 |
|
70% |
|
Percentage of candy canes after Cody received from Sean
= 100% + 40%
= 140%
Percentage of Cody's candy canes that Mary had after receiving from Cody
= 50% x 140%
=
50100 x 140%
= 70%
Percentage of candy canes that Cody had left after giving to Mary
= 140% - 70%
= 70%
100% = 30
Number of candy canes that Cody had left
= 70% x 30
=
70100 x 30
= 21
Answer(s): 21
