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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.

Ram and Rahim standing at a distance of 680m run towards each other at a speed of 8 m/sec and 9 m/sec respectively. After how long will they meet?

A) 17 sec	B) 24 sec
C) 40 sec	D) 36 sec

A) 17 sec

B) 24 sec

C) 40 sec

D) 36 sec

Answer & Explanation Answer: C) 40 sec

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1 1002

A person goes from point N to P and comes back. His average speed for the whole journey is 60 km/hr. If his speed while going from N to P is 40 km/hr, then what will be the speed of the person (in km/hr) while coming back from P to N?

A) 80	B) 100
C) 120	D) 140

A) 80

B) 100

C) 120

D) 140

Answer & Explanation Answer: C) 120

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0 998

A boy walking at the speed of 4 km/hr covers a certain distance in 6 hours 15 minutes. If he covers the same distance by cycle in 5 hours, then what is the speed (in km/hr) of the cycle?

A) 4.5	B) 5
C) 6	D) 6.5

A) 4.5

B) 5

C) 6

D) 6.5

Answer & Explanation Answer: B) 5

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3 998

Car B is twice as fast as car A. If car A covers 90 km in 2 hours, what is the speed of car B?

A) 90 kmph	B) 80 kmph
C) 100 kmph	D) 70 kmph

A) 90 kmph

B) 80 kmph

C) 100 kmph

D) 70 kmph

Answer & Explanation Answer: A) 90 kmph

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2 993

A Lawn roller makes 20 revolutions in one hour. The radius it runs through 25 minutes is

A) 50π7	B) 150π7
C) 250π3	D) 50π3

A) 50π7

B) 150π7

C) 250π3

D) 50π3

Answer & Explanation Answer: D) 50π3

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0 972

A bus is running at a speed of 90 kmph. What distance will it cover in 20 seconds?

A) 500 m	B) 450 m
C) 180 m	D) 600 m

A) 500 m

B) 450 m

C) 180 m

D) 600 m

Answer & Explanation Answer: A) 500 m

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0 970

Two donkeys are standing 400 meters apart. First donkey can run at a speed of 3 m/sec and the second can run at 2 m/sec. If two donkeys run towards each other after how much time (in sec) will they bump into each other?