Hilda and Mary shared a box of pens. Hilda had 69% of the total pens. if Hilda gave 57 of her pens to Mary, both would have the same number of pens. How many pens did Mary have?
| |
Hilda |
Mary |
Total |
| Before |
69% |
31% |
100% |
| Change |
- 19% |
+ 19% |
|
| After |
50% |
50% |
100% |
Total number of pens that Hilda and Mary shared = 100%
If Hilda gave 57 pens to Mary, 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 Hilda gave to Mary
= 69% - 50%
= 19%
19% → 57
1% → 57 ÷ 19 = 3
Number of pens that Mary had
= 31%
= 31 x 3
= 93
Answer(s): 93
