Question

A machine can produce a nail every 2.4 seconds. If the machine keeps running for 3 days without stop, how many nails can be produced?

Answer 1

Explanation:

so 2.4 nails per second, multiply it by 60 (60 seconds in a minute) =144 so 144 nails per minute. 144 nails per minute times 60 minutes is 8640 nails per hour. If it’s running for 3 days non-stop it would be 72 hours, so 8640 multiplied by 72 (hours) 622,080 nails would be the total in 3 days.