Ivory and Cindy shared a box of pens. Ivory had 63% of the total pens. if Ivory gave 91 of her pens to Cindy, both would have the same number of pens. How many pens did Ivory have?
| |
Ivory |
Cindy |
Total |
| Before |
63% |
37% |
100% |
| Change |
- 13% |
+ 13% |
|
| After |
50% |
50% |
100% |
Total number of pens that Ivory and Cindy shared = 100%
If Ivory gave 91 pens to Cindy, both would have the same number of pens.
Number of pens that each would have in the end
= 100% ÷ 2
= 50%
Number of pens that Ivory gave to Cindy
= 63% - 50%
= 13%
13% → 91
1% → 91 ÷ 13 = 7
Number of pens that Ivory had
= 63%
= 63 x 7
= 441
Answer(s): 441
