A train is traveling at the rate of 45km/ hr. How many seconds will take to cover a distance of $$ {4\over5} $$ km? 

A racing car going at an average speed of 108 km/ hr takes 15 minutes to complete a lap on a racing track. By how much should it increase its speed (in km/hr) to complete the lap in 12 minutes?

A bullet travels at 750 m/s. How long will it take to travel 1 km?

Piyush is running at the speed of 8 km/h and he stops for 5 minutes at the end of every third kilometer. How much time will Piyush take to cover a distance of 56 km?

A car covers the first 35 km in 45 minutes and the remaining 69 km in 75 minutes. What is the average speed of the car?

How many kilometers will a person riding on a scooty cover in 3 hours 20 minutes at a speed of 5 meters per second?

An office opens at 10 am and closes at 5 pm. The lunch break is of 30 minutes. What is the ratio of lunch break and total office hours?

Tom follows Jerry. In the same time Tom jumps 8 times and Jerry jumps 6 times. But the distance that Tom travels after jumping 7 times is equal to the distance that Jerry goes after jumping 5 times. What is the ratio of the speed of Tom and Jerry?