Priyanka covers a distance of 800 m in 6 minutes. Her speed in km/hr is:

In a 1 km race, A runs at a speed of 35 m/s. If A gives B a start of 50 m and beats him by 12 seconds, then the speed of B is:

The speed of a car is 20 m/s. How much distance (in km) will the car travel in 2.5 hours?

If Reena walks from her home at a speed of 3 km/h, she reaches a birthday party 20 minutes late. If she increases her speed to 4 km/h, she reaches 30 minutes early. What is the distance between her home and the party venue?

The distance between two stations A and B is 778 km. Mohan travels from A to B at a speed of 84 km/h and returns to A at a uniform speed of 56 km/h. Find his average speed for the entire journey.

Train A, moving at a speed of 90 km/h, takes 15 seconds to completely cross train B, which is moving in the opposite direction at 18 km/h. The length of train B is 3.5 times the length of train A. Train B completely crosses a bridge in 75 seconds. Find the length of the bridge (in m).

A person covers 296 km in 11 hours. If his speed for the first 282 km is 94 km/h, find his speed for the remaining distance.

What is the time taken by a walker to cover one round of a circular field of diameter 420 m if he walks at a speed of 3 km/hr? (Take π = 227)

A car covers a distance of 163 km in the first hour and 117 km in the second hour. Find the average speed of the car (in km/h) for the entire journey.