Acompany figured that if it had 50 more employees and paid each one $2 per day less, the payroll would increase $620 per day. if it had 50 less employees and paid each $4 per day more, the payroll would decrease $640 per day. how many employees does the company now have?
a. 150
b. 125
c. 80
d. 140
e. 180