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Quantitative Aptitude - Arithmetic Ability/
Time and Distance

Time and Distance Questions

Popular Latest Rated Important Formulae

FACTS AND FORMULAE FOR TIME AND DISTANCE

1. $S p e e d = \frac{D i s \tan c e}{T i m e}, T i m e = \frac{D i s \tan c e}{S p e e d}, D i s \tan c e = (S p e e d \times T i m e)$

2. x km/hr = $(x \times \frac{5}{18}) m / s e c$

3. x m/sec = $(x \times \frac{18}{5}) k m / h r$

4. If the ratio of the speeds of A and B is a:b , then the ratio of the times taken by them to cover the same distance is or b : a

5. Suppose a man covers a certain distance at x km/ hr and an equal distance at y km/hr . Then, the average speed during the whole journey is $\frac{2 x y}{x + y}$ km/hr.

A train has to cover a distance of 900 km in 25 hours. What should be its average speed in meters/second?

A) 20	B) 10
C) 18	D) 36

A) 20

B) 10

C) 18

D) 36

Answer & Explanation Answer: B) 10

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2 1561

A boy running at 10/9 th of his actual speed covers 39 km in 2 hours 20 minutes and 24 seconds. Find the actual speed of the boy (approx.)

A) 15 kmph	B) 50 kmph
C) 39 kmph	D) 150 kmph

A) 15 kmph

B) 50 kmph

C) 39 kmph

D) 150 kmph

Answer & Explanation Answer: A) 15 kmph

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1 1561

Ram travels 4/9th of the total journey by bus, 5/18th by rail and the remaining 10 km on foot. Find the distance of total journey.

A) 42 km	B) 90 km
C) 36 km	D) 18 km

A) 42 km

B) 90 km

C) 36 km

D) 18 km

Answer & Explanation Answer: C) 36 km

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5 1550

What should be the average speed of a car to cover a distance of 189 km in 3.5 hours?

A) 15 m/s	B) 54 m/s
C) 27 m/s	D) 30 m/s

A) 15 m/s

B) 54 m/s

C) 27 m/s

D) 30 m/s

Answer & Explanation Answer: A) 15 m/s

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1 1545

A person clapped his hands near a cliff and heard echo after 6 s. The distance of the cliff from the personis: [take v = 346 m/s]

A) 1038 m	B) 1083 m
C) 2076 m	D) 2706 m

A) 1038 m

B) 1083 m

C) 2076 m

D) 2706 m

Answer & Explanation Answer: A) 1038 m

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0 1544

A man travels some distance at a speed of 12 km/hr and returns at a speed of 9 km/hr. If the total time taken by him is 2 hrs 20 min, the distance is

A) 35 Km	B) 21 Km
C) 9 Km	D) 12 Km

A) 35 Km

B) 21 Km

C) 9 Km

D) 12 Km

Answer & Explanation Answer: D) 12 Km

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1 1544

A spaceship travels at 810 km/hr. How many metres does it travel in 1/5th of a second?

A) 60	B) 45
C) 75	D) 90

A) 60

B) 45

C) 75

D) 90

Answer & Explanation Answer: B) 45

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2 1543

A bus travels 720 km in 20 hours. Calculate its average speed in meters/second.

A) 12	B) 15
C) 18	D) 10

A) 12

B) 15

C) 18

D) 10

Answer & Explanation Answer: D) 10

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