Question

The speed of 45 m/sec when converted into km/h is
a) 152 km/h b)
b) 162 km/h c) 172 km/h d) 27
h.​

Answer 1

Step-by-step explanation:

1 m/sec =1/1000/1/3600 km/hour

=18/5 km/h

45m/sec=45×18/5

=9×18

=162 km/h