Question

it takes 3 machines 5 minutes to pack 30 cases of water.
how long will it take 5 machines working at the same rate to pack 60 cases of water?

Answer 1

Answer:

please complete your question

Answer 2

Answer:

Simple this type of questions is solved by unitary method :

5 machine make 5 widgets in = 5 minutes

1 machine make 5 widgets in = 5 × 5 minutes = 25 minutes

1 machine make 1 widgets in = 25 ÷ 5 minutes = 5 minutes.

So, 1 machine make 100 widgets in = 5 × 100 minutes = 500 minutes

now, 100 machine make 100 widgets in = 500 ÷ 100 minutes = 5 minutes.