Time and Distance Questions

A car travels a certain distance at 24 km/h and comes back at 36 km/h. Find the average speed for total journey.

A man covers a total distance of 100 km on bicycle. For the first 2 hours, the speed was 20 km/hr and for the rest of the journey, it came down to 10 km/hr. The average speed will be

How long will Ramesh take to run round a square park of edge 50 meters, if he runs at the rate of 18 km/hr?

P and Q are at a distance of 240 km from each other at 9:00 a.m. After 1 hour, P starts moving towards Q at a speed of 25 km/hr. At 11 a.m. Q startsmoving towards P at the speed of 18 km/hr. At what time (in p.m.) will they meet?

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?

Ankit runs 324 metres every day for his fitness. According to his daily routine in how many days he covers 8.1 km.

Rizvan walks at 15 km/hr and Ruchitha cycles at 20 km/hr towards each other. What was the distance between them when they started if they meet after 42 minutes?

Diameter of a car wheel is 21 cm. A car driver moving at the speed of 66 km/hr takes 36 seconds to reach a destination. How many revolutions will the wheel make during the journey?