Time and Distance Questions

Chandan travelled equal distance with speed of 3 kmph, 4 kmph and 8kmph and takes a total time of 42.5 min. Find the total distance in km.

A boy walking at the speed of 4 km/hr covers a certain distance in 6 hours 15 minutes. If he covers the same distance by cycle in 5 hours, then what is the speed (in km/hr) of the cycle?

A missile travels at 1440 km/h. How many metres does it travel in one second?

A car travels a certain distance at 32 km/h and comes back at 68 km/h. What is the average speed for total journey?

A car travels a certain distance at 34 km/h and comes back at 66 km/h. What is the average speed for total journey?

A man starts walking at 6.30 a.m. and wants to cover a distance of 30km. His initial speed is 6 kmph and after covering three-fifth distance, he reduces his speed by 2 kmph. At what time will he complete his walk?

The distance between two pillars is 120 metres. The height of one pillar is thrice the other. The angles of elevation of their tops from the midpoint of the line connecting their feet are complementary to each other. The height (in metres) of the taller pillar is (Use : √3 = 1.732)

A car covers the first 30 km at a speed of 60 kmph and the next 20 km at 80 kmph. Find the average speed.