Question

A bus travels 720 km in 20 hours. Calculate its average speed in meters/second.

A) 12 B) 15 C) 18 D) 10

Answer 1

Distance = 720 km

= 720000 m

Time = 20 hr

= 20×3600 s

=72000 s

Average speed = 720000/72000 m/s

= 10 m/s

Answer 2

Answer:

▪️first,convert the time and length

720km is equal to 720000

20 hours is equal to 72000

▪️now apply the formula

speed=distance/time

speed=720000m/72000sec

speed=10m/s.