Average Speed

Q.

A bus travels a distance of 120km with a speed of 40km/h and returns with a speed of30km/h. Calculat the average speed for the entire journey.

1. 34.2 km / hr

2. 32.4 km / hr

3. 30 km / hr

4. 40 km / hr

Q.

A train 110 m long travels at a speed of 60 km per hour. A man is running at 6 km per hour in the same direction in which the train is moving. The train will cross the man in

1. $5\frac{2}{3}$ seconds

2. $7\frac{1}{3}$ seconds

3. 12 seconds

4. 54 seconds

Q.

Can average speed be zero?

Q.

A car travels at a speed of 50 km/h for 3 hours. For the next 2 hours, it travels at a speed of 100 km/h. Find its average speed.

1. 70 km/h

2. 80 km/h

3. 60 km/h

4. 50 km/h

Q. The cost of fuel in running an engine is proportional to the square of speed in km/h and is Rs. 64 per hour when the speed is 16 km/h. Other cost amount is 100 per hour. Find speed which would minimize the cost.

Q.

A train covers first 140 km in 2 hours, next 180 km in 3 hours and the last 40 km in 1 hour. Find the average speed of the train.

1. 100 $\frac{km}{h}$

2. 80 $\frac{km}{h}$

3. 60 $\frac{km}{h}$

4. 40 $\frac{km}{h}$

Q.

Person A covers a distance in 40 minutes if he drives at a speed of 60 miles/h on an average. The speed at which he must drive at to reduce the time of journey by 25% is

Q. Raghavendra can cover a distance in 1 hr and 24 min by covering 2/3 of the distance at 4 kmph and the remaining at 5 kmph. Find the total distance covered by him.

Q.

Find the average speed of a car which covers a distance of 14 km in the first 15 minutes and 10 km in the next 15 minutes.

1. 50 km per hour

2. 48 km per hour

3. 60 km per hour

4. 20 km per hour

Q.

A bullet train can travel at a speed of 300 km/hr. Find the time it should take to travel between Beijing and Shanghai which are approximately located at a distance of 1200 km from each other.

1. 3 hr

2. 4 hr

3. 1 hr

4. 2 hr

Q.

Find the speed.

The distance travelled is 200m in 20seconds.

Q. Kutti covers 10 km in 2 hours. Her average speed is .

1. 3 km/h
2. 5 km/h
3. 2 km/h

Q.

What is the average speed of a train that travels from one station to another station at a uniform speed of 40kmph and returns to the initial station at 60kmph.

1. 40km/h

2. 48km/h

3. 12km/h

4. 60km/h

Q.

A train took 5 hours to cover 300 kilometers. Calculate the average speed of the train.

1. 62 km/hr

2. 50 km/hr

3. 68 km/hr

4. 60 km/hr

Q.

Find the time taken by a train 150m in length running at a speed of 90km/hr to pass a pole

1. 10s

2. 5s

3. 6s

4. 15s

Q.

The average speed of a train is 20% less on the return journey than on the onward journey. The train halts for half an hour at the destination station before starting on the return journey. If the total time taken for the 'to and fro' journey is 23h covering a distance of 1000 km the speed of the train on the return journey is

Q.

How fast do you need to travel to cover 150 miles in 3 hours?

1. 50 miles per hour

2. 80 miles per hour

3. 100 miles per hour

4. 60 miles per hour

Q.

1) An elevator ascends at the rate of 5 metre/sec if it starts from the basement which is 5 metre the ground level, in how much time will it reach a height of 50 metre above the ground?

Q.

A car travels first 60 km in 2 hours and next 100 km in 3 hours. Find the average speed of the car.

1. 160 $km{h}^{-1}$

2. 100 $km{h}^{-1}$

3. 32 $km{h}^{-1}$

4. 23 $km{h}^{-1}$

Q.

An object covers half its journey with a speed of 40m/s and the other half with a speed of 60m/s. Find its average speed for the whole journey.

1. 60m/s

2. 48m/s

3. 36m/s

4. 40m/s

Q. Dear sir,

please help me for answer this qyestion

Q: a two weeler can cover a distance of 42.5 kms in 2.5 hrs. What us the average speed of the two weeler?

devapriya

Q.

Lily takes 3 hours to travel from place A to place B at the speed of 60 miles per hour. She takes 2 hours to travel from place B to C with a speed increased by 50 %. Find the average speed from place A to C.

1. 108 miles/hr

2. 78 miles/hr

3. 72 miles/hr

4. 115 miles/hr

Q. A train covers the first half of 80 km at a speed of 30 km/h and the second half at x km/hr. Calculate x if the average speed of the train is 45 km/h.

Q.

Find the speed.

The distance travelled is 500m at 10seconds.

Q. A train took 5 hours to cover 300 kilometers. Calculate the average speed of the train.

Q.

A man ran around a circular track of circumference 2 km in 5 minutes. What are his average speed and average velocity?

1. Average Speed = 24 km\hr; Average Velocity = 24 km\hr

2. Average Speed = 24 km\hr; Average Velocity = 0

3. Average Speed = 24 m\s; Average Velocity = 24 m\s

4. Average Speed = 24 m\s; Average Velocity = 0

Q. A car travels first half of a certain distance with uniform speed of 20 km/h and travels second half distance in two equal time interval with uniform speed 25 km/ h and 35km/h respectively . Find the average speed of car for entire journey

Q. A car seller claims that his 1000 kg car can accelerate from rest to a speed of 24 m/s in jst 8.0s find average power of engine of the car

Q.

A 60 m long train moving on a straight level track passes a pole in 5 s, find the speed of the train and the time taken by the train to cross a 540 m long bridge.

1. 13 m/s, 40 s

2. 25 m/s, 30s

3. 12 m/s, 50 s

4. 15 m/s, 65 s

Q. A car moving on a straight road covers one third of the distance with a speed of 20 km/hr and the rest with the speed of 60km/hr . The average speed of car is (1)40 km /hr (2)50 km/hr (3)36km/hr (4)55km/hr