Roshel and Erika shared a box of stamps. Roshel had 72% of the total stamps. if Roshel gave 220 of her stamps to Erika, both would have the same number of stamps. How many stamps did Erika have?
| |
Roshel |
Erika |
Total |
| Before |
72% |
28% |
100% |
| Change |
- 22% |
+ 22% |
|
| After |
50% |
50% |
100% |
Total number of stamps that Roshel and Erika shared = 100%
If Roshel gave 220 stamps to Erika, both would have the same number of stamps.
Number of stamps that each would have in the end
= 100% ÷ 2
= 50%
Number of stamps that Roshel gave to Erika
= 72% - 50%
= 22%
22% → 220
1% → 220 ÷ 22 = 10
Number of stamps that Erika had
= 28%
= 28 x 10
= 280
Answer(s): 280
