Air distance between Kota to Jaipur is 260 km and road distance is 320 km. A deluxe bus which moves from Jaipur to Kota takes 8 h while and aeroplane reaches in just 15 min. Find
(i) average speed of bus in km/h
(ii) average velocity of bus in km/h
(iii) average speed of aeroplane in km/h
(iv) average velocity of aeroplane in km/h

Explanation

Air distance (shortest distance) = displacement = 260 km
Road distance = 320 km
(i) Average speed of bus = `("Total distance")/("total time")`
`" " = (320)/(8)`
`" " = 40 km//h`
(ii) Average velocity of bus
`" " = ("Total displacement")/("Time")= (260)/(8)`
`" " = 32.5 km//h`
(iii) Average speed of plane = `(260)/((1)/(4)) = 1040 km//h`
(iv) Average velocity of aeroplane = `(260)/(1//4)`
`" " = 1040 km//h`