Hi there!
In order to answer your question, you’ll need to use the cross product method :
500 screws → 4 seconds
X screws → 60 seconds
(500 × 60) ÷ 4 = X screws
30,000 ÷ 4 = X screws
7,500 = X screws
Your answer is : The company can make 7,500 screws in 1 minute!
There you go! I really hope this helped, if there’s anything just let me know! ☻