I have a problem solving question like this:
A factory has 500 workers, 15% of whom are women. If 50 additional workers are to be hired and all present workers remain. How many of additional workers must be women in order to raise the percent of women employees to 20%.
A. 3
B. 10
C. 25
D. 30
E. 35
I do the following calculation:
15% of 500 = 75
20% of 550 = 110
110 - 75 = 35
But OA is B
A factory has 500 workers, 15% of whom are women. If 50 additional workers are to be hired and all present workers remain. How many of additional workers must be women in order to raise the percent of women employees to 20%.
A. 3
B. 10
C. 25
D. 30
E. 35
I do the following calculation:
15% of 500 = 75
20% of 550 = 110
110 - 75 = 35
But OA is B
