Ivory and Mary shared a box of stamps. Ivory had 81% of the total stamps. if Ivory gave 124 of her stamps to Mary, both would have the same number of stamps. How many stamps did Mary have?
| |
Ivory |
Mary |
Total |
| Before |
81% |
19% |
100% |
| Change |
- 31% |
+ 31% |
|
| After |
50% |
50% |
100% |
Total number of stamps that Ivory and Mary shared = 100%
If Ivory gave 124 stamps to Mary, 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 Ivory gave to Mary
= 81% - 50%
= 31%
31% → 124
1% → 124 ÷ 31 = 4
Number of stamps that Mary had
= 19%
= 19 x 4
= 76
Answer(s): 76
