Mary and Erika shared a box of pens. Mary had 64% of the total pens. if Mary gave 98 of her pens to Erika, both would have the same number of pens. How many pens did Mary have?
| |
Mary |
Erika |
Total |
| Before |
64% |
36% |
100% |
| Change |
- 14% |
+ 14% |
|
| After |
50% |
50% |
100% |
Total number of pens that Mary and Erika shared = 100%
If Mary gave 98 pens to Erika, 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 Mary gave to Erika
= 64% - 50%
= 14%
14% → 98
1% → 98 ÷ 14 = 7
Number of pens that Mary had
= 64%
= 64 x 7
= 448
Answer(s): 448
