Question

A train completes 60 meters in 3 seconds, so, what's speed per hour?
options-
72km 67km 84km 144 km​

Answer 1

Answer:

72 km

Step-by-step explanation:

1 hour = 3600 seconds

in 3 seconds the train goes 60 meters

so, in 1 seconds the train goes = (60÷3) = 20

so, in 3600 seconds the train goes = (20 × 3600) =72000 meters = 72 km

so the speed per hour is 72 km

Answer 2

Answer:

72

Step-by-step explanation: