Warren and Bobby had 20 candy canes each. Warren gave 20% of his candy canes to Bobby. After receiving the candy canes from Warren, Bobby gave 50% of his total candy canes to Tina. How many candy canes had Bobby left?
| |
Warren |
Bobby |
Tina |
| Before |
100% |
100% |
|
| Change 1 |
- 20% |
+ 20% |
|
| After 1 |
80% |
120% |
|
| Change 2 |
|
- 60% |
+ 60% |
| After 2 |
|
60% |
|
Percentage of candy canes after Bobby received from Warren
= 100% + 20%
= 120%
Percentage of Bobby's candy canes that Tina had after receiving from Bobby
= 50% x 120%
=
50100 x 120%
= 60%
Percentage of candy canes that Bobby had left after giving to Tina
= 120% - 60%
= 60%
100% = 20
Number of candy canes that Bobby had left
= 60% x 20
=
60100 x 20
= 12
Answer(s): 12
