If a steel mill can produce 1,500 feet of I - beams every 20 minutes, how many feet of I - beams can it produce in 50 minutes?

If Biff can shape 3 surfboards in 50 minutes, how many surfboards can he shape in 5 hours?

If 5 spiders can catch 5 flies in 5 minutes, how many flies can 100 spiders catch in 100 minutes ?

If a bacterium cell divides it every 20 minutes, how many bacteria will be formed in two hours?

If 5 spiders can catch five flies in five minutes, how many flies can hundred spiders catch in 10 minutes? 100 b. \ 500 c. 1000 d. 2000

A bacterium divides in every 20 minutes. How many bacteria will be formed within three hours?

If Alex can fold 12 napkins in x minutes, how many napkins can be fold in y hours?