Time and Distance MCQ Set 3

Showing question 11 to 15 of total 31 MCQs

Solve the question on your notebook and check it by clicking (Answer and Explanation) below question.

Question No: 14

A man on tour travels first 160 km at 64 km/hr and the next 160 km at 80 km/hr. Find the average speed for first 320 km of tour.

1. 70.11 km/hr
2. 71.11 km/hr
3. 72.11 km/hr
4. 73.11 km/hr

Answer: B

Explanation

We know Time = Distance/speed

So total time taken =

Time taken for 320 Km = 320×2/9=71.11km/hr

Question No: 15

Robert is travelling on his cycle and has calculated to reach point A at 2 P.M. if he travels at 10 kmph, he will reach there at 12 noon if he travels at 15 kmph. At what speed must he travel to reach A at 1 P.M.?

1. 9 km/hour
2. 10 km/hour
3. 11 km/hour
4. 12 km/hour

Answer: D

Explanation

We need to calculate the distance, then we can calculate the time and finally our answer.

Lets solve this,

Let the distance traveled by x km

Time = Distance/Speed

So 2 P.M. - 6 = 8 A.M

Robert starts at 8 A.M.

He have to reach at 1 P.M. i.e, in 5 hours

So, Speed = 60/5 = 12 km/hr

Question No: 11

A man complete a journey in 10 hours. He travels first half of the journey at the rate of 21 km/hr and second half at the rate of 24 km/hr. Find the total journey in km.

1. 200 Km
2. 222 Km
3. 224 Km
4. 248 Km

Question No: 12

A Man travelled a distance of 61 km in 9 hours. He travelled partly on foot at 4 km/hr and partly on bicycle at 9 km/hr. What is the distance travelled on foot?

1. 16 km
2. 14 km
3. 12 km
4. 10 km

Question No: 13

In a flight of 600 km, an aircraft was slowed down due to bad weather. Its average speed for the trip was reduced by 200 km/hr and the time of flight increased by 30 minutes. What is the duration of the flight ?

1. 3 hours
2. 2.4 hours
3. 1.4 hours
4. 1 hour

Answer: D

Explanation

Let the duration of the flight be x hours.

Then

x(2x+1)

=32x²+x-3=0

(2x+3)(x-1)=0

Neglecting the negative value for x we get x = 1