Dana and Betty shared a box of stamps. Dana had 75% of the total stamps. if Dana gave 250 of her stamps to Betty, both would have the same number of stamps. How many stamps did Betty have?
| |
Dana |
Betty |
Total |
| Before |
75% |
25% |
100% |
| Change |
- 25% |
+ 25% |
|
| After |
50% |
50% |
100% |
Total number of stamps that Dana and Betty shared = 100%
If Dana gave 250 stamps to Betty, 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 Dana gave to Betty
= 75% - 50%
= 25%
25% → 250
1% → 250 ÷ 25 = 10
Number of stamps that Betty had
= 25%
= 25 x 10
= 250
Answer(s): 250
