Kylie and Olivia shared a box of stamps. Kylie had 80% of the total stamps. if Kylie gave 150 of her stamps to Olivia, both would have the same number of stamps. How many stamps did Olivia have?
| |
Kylie |
Olivia |
Total |
| Before |
80% |
20% |
100% |
| Change |
- 30% |
+ 30% |
|
| After |
50% |
50% |
100% |
Total number of stamps that Kylie and Olivia shared = 100%
If Kylie gave 150 stamps to Olivia, 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 Kylie gave to Olivia
= 80% - 50%
= 30%
30% → 150
1% → 150 ÷ 30 = 5
Number of stamps that Olivia had
= 20%
= 20 x 5
= 100
Answer(s): 100
