Mathematics (Speed, Time and Distance গতিবেগ, সময় এবং দূরত্ব)

1) If Sohan is driving a bike at a speed of 25 m/s, then in how muchtime Sohan will cover a distance of 540
km?

2) A train covers a certain distance at a speed of 45 m/s in 15 minutes. How much time it will take to cover
the same distance at the speed of 60 m/s

3) A person drives from A to B at 80 km/h and from B to C at 50 km/h. If the total time taken is 5 hours and the distance from A to B is 200 km, find the distance from B to C.

4) A takes 6 hours more than B to cover a distance of 60 km. But if A doubles his speed, he takes 3 hours
less than B to cover the same distance. The speed (in km/hr) of A is:

5) A man standing at the top of a hill observes the angle of depression of a car on the ground to be 30 degrees. If the hill is 100 meters high, how far is the car from the base of the hill?

6) A vehicle travels half the distance at 60 km/h and the remaining half at 90 km/h. If the total distance is 180 km, what is the average speed of the vehicle for the entire journey?

7) A man walks to a place at 5 km/h and returns at 3 km/h. If the total walking time is 4 hours, what is the distance to the place?

8) Walking at 75% of his usual speed, Raghu is 80 minutes late to his office. What is his usual time in hours
to cover the same distance?

9) Manish goesto his hometown at the speed of 40 km/hr andreturns to his homeat the speed of Y km/hr.
Distance between his home and hometown is 360 km. If he takes total 21 hours, then whatis the value of
Y

10) Mohan covers a distance of 187 km at the speed of S km/hr. If Mohan increases his speed by 6 km/hr,
then he takes 6 hours less. What is the value of S