Question

three spraying machines working together can finish painting a house in 60 minute how long will it take for five machines of the same capacity to do the same job​

Answer 1

Step-by-step explanation:

finish painting in =60 minutes

minute take for 1 minute = 60 ÷3=20 , minute

time take for 5 machine = 20 ×5 =100 minute

Answer 2

Answer:

60÷3=20

1 machine will take 20 minutes

if all machine are working together

it will take 20 minutes

if they are working one by one it will take 1hr40mins (1.4)hrs