Erika and Olivia shared a box of pens. Erika had 76% of the total pens. if Erika gave 78 of her pens to Olivia, both would have the same number of pens. How many pens did Olivia have?
| |
Erika |
Olivia |
Total |
| Before |
76% |
24% |
100% |
| Change |
- 26% |
+ 26% |
|
| After |
50% |
50% |
100% |
Total number of pens that Erika and Olivia shared = 100%
If Erika gave 78 pens to Olivia, 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 Erika gave to Olivia
= 76% - 50%
= 26%
26% → 78
1% → 78 ÷ 26 = 3
Number of pens that Olivia had
= 24%
= 24 x 3
= 72
Answer(s): 72
