Application of Average Speed in Everyday Life

Q.

A car goes at an average speed of 36 km/h for 15 minutes and 60 km/h for the next 15 minutes. How much distance did it cover?

1. 25 km

2. 26 km

3. 20 km

4. 24 km

Q.

A car travels 60 km at 30km/h and then a further 180 km at 60 km/h. Find:

(a) The total time taken.

(b) The average speed of the whole journey.

1. (a) 5 hours

2. (a) 4 hours

3. (b) 45 km/h

4. (b) 48 km/h

Q.

Ajay drove for 3 hours at a rate of 50 km per hour and for 2 hours at 60 km per hour. What was his average speed for the whole journey?

1. 60 km/hr

2. 65 km/hr

3. 54 km/hr

4. 50 km/hr

Q.

Ankit drives 120 km at 60 km/hr and the next 120 km at 40 km/hr. His average speed during the entire trip is:

1. 50 km/hr

2. 42 km/hr

3. 60 km/hr

4. 48 km/hr

Q.

Vivek drove his car first 160 km at 64 km/hr and the next 160 km at 80 km/hr. What is the average speed for the first 320 km of his tour?

1. 76 km/hr

2. 75.2 km/hr

3. 69.8 km/hr

4. 71.11 km/hr

Q.

A cyclist travels 25 km at 5 km/h and then a further 80 km at 40 km/h. What is his average speed of the journey?

1. 25 km/h

2. 5 km/h

3. 20 km/h

4. 15 km/h

Q.

If an item is sold at $Rs990$ and at a profit of $10\%$ , then its $CP$ $=$ ………… $[Rs1089/Rs900]$

Q.

Find the average speed of train travelling $144\mathrm{km}$ in $2\mathrm{hr}$ . Express the answers in $\raisebox{1ex}{$\mathrm{m}$}\!\left/ \!\raisebox{-1ex}{$\mathrm{s}$}\right.$.

Q. A bike covers a distance of 5000 m in 5 minutes whereas a train covers a distance of 100 km in 50 minutes. Find how many times the train is faster than the bike.

1. 2

Q. Shyam is riding his bike at $54$ kmph. He takes to cover a distance of 15 m.

1. 1 s
2. 1 hr
3. 1.2 s
4. 1.2 hr

Q. Find the compound interest earned on a sum of ₹400 in 2 years at the rate of 25% p.a.

1. 225

Q.

Amrutha drove from bangalore to chennai at 80km/hr and returned at 100km/hr.Find the average speed.

1. 100km/hr

2. 98km/hr

3. 66.66km/hr

4. 88.88km/hr

Q.

A crow flies at a speed of 50 km/h for 3 hours and then at a speed of 40 km/h for further 2 hours. Find the average speed of the whole journey.

1. 36 km/h

2. 230 km/h

3. 46 km/h

4. 48 km /h

Q.

Find the distance travelled by bus moving at 40 km/hr in 40 minutes.

1. 80/3 km

2. 16/9 km

3. 30 km

4. 35 km

Q.

Alex drives a car at a speed of 52 km per hour for 8 hours. How far does he travel?

1. 400 km

2. 580 km

3. 416 km

4. 300 km

Q.

Rohit and Saurav travelled to Thiruvananthapuram from the same place, each in his own car. Rohit did his onward journey at an average speed of 120 km/h and returned at 50 km/h. Saurav did both the trips at 60 km/h. Among them, Saurav completed the journey in less time.

1. False

2. True

Q.

The population of a city rose from $50,000$ to$58,000$. What was the percentage increase?

1. $9.6\%$

2. $13.8\%$

3. $16\%$

4. $24\%$

Q. The first half of total distance of 50 km is covered in 2 hours, and the second half in 3 hours. The average speed is ______.

Q. A car is moving on staight road covers one third of the distance with a speed of 20 km/h and the rest with a speed of 60 km/h .The avarage speed of the car is

Q. A car driver travels from the plains to the hill station which are $200$ km apart at an average speed of $40$ km/hr. In the return trip he covers the same distance at an average speed of $20$ km/hr. The average speed of the car over the entire distance of $400$ km is

1. $26.67$ km/hr
2. $25$ km/hr
3. $30$ km/hr
4. $28.56$ km/hr

Q.

Which of the following statements are correct for a round trip along the same route?

1. Average speed is non-zero and positive.

2. Average speed is zero in a round trip

3. Average speed is - 10 m/s in a round trip

4. Average speed is non-zero and negative

Q.

A motorist traveled 190 km in 5 hours. His average speed for first 100 kilometres was 50 km/h. What was his average speed for the second 90 kilometres?

1. 30 km/h

2. 3.33 km/h

3. 30.03 km/h

4. 33.33 km/h

Q. A crow flies at a speed of 50 km/h for 3 hours and then at a speed of 40 km/h for further 2 hours. Find the average speed of the whole journey.

1. 230 km/hr
2. 48 km/hr
3. 46 km/hr
4. 36 km/hr

Q. The first half of total distance of 50 km is covered in 2 h, and the second half in 3 h. The average speed is ______.

1. 13.8 ms^ (-1)
2. 2.78 ms^ (-1)
3. 7 ms^ (-1)
4. 5.56 ms^ (-1)

Q.

An auto travels with a uniform speed u for the first half duration and the next half duration with a uniform speed v. Find its average speed.

1. $\frac{u+v}{2}$

2. $\frac{uv}{2}$

3. $2uv$

4. $uv$

Q.

If Raju covers a distance of 12 km in 3 hours then find distance that Raju travels in 10 hours

1. 80 km

2. 20 km

3. 40 km

4. 10 km

Q. Rahul and Chunky starts together from Delhi in their own cars for Shimla. Rahul drives at an average speed of $60km/h$ and reaches Shimla in $9hours$. If Chinky drives at an average speed of $54km/h$ how much time will he take to reach Shimla?

Q. The extra money charged (from borrowers) or paid (to depositors) by banks is called ______ .

1. principal
2. interest
3. amount
4. rate of interest

Q. A car moves towards north at a speed of 54km/h for 1h. Then it moves eastward with same speed for same duration. The average speed and velocity of car for complete journey is

Q.

The population of a town in $1995$ was $1600000$ and in $2002$ it was $2100000$. Find the percent increase in population.