In a factory, an assembly line can manufacture 39 widgets per second. In another factory, 6 widgets are combined to make 1 whoozit. Approximately how many days must the widget assembly line run to produce 3,500,000 whoozits?

A. 4 days

B. 6 days

C. 374 days

D. 9479 days

Given:

39 widgets per seconds

6 widgets to make 1 whoozit

3,500,000 whoozits * 6 widgets/whoozits = 21,000,000 widgets

21,000,000 widgets / 39 widgets/sec = 538,461.54 seconds

1 day = 24 hours

1 hour = 60 minutes

1 minutes = 60 seconds

1 hour = 3600 seconds

3,600 seconds * 24 hrs = 86,400 seconds

538,461.54 seconds / 86,400 seconds per day = 6.23 days.

B. 6 days.