46
Q:

A man reaches his office 20 min late, if he walks from his home at 3 km per hour and reaches 30 min early if he walks 4 km per hour. How far is his office from his house ?

A) 20 km B) 16 km
C) 14 km D) 10 km

Answer:   D) 10 km



Explanation:

Let distance = x km.
Time taken at 3 kmph : dist/speed = x/3 = 20 min late.
time taken at 4 kmph : x/4 = 30 min earlier
difference between time taken : 30-(-20) = 50 mins = 50/60 hours.
x/3- x/4 = 50/60
x/12 = 5/6
x = 10 km.

Q:

Two cyclists X and Y start at the same time from place A and go towards place B at a speed of 6 km/h and 8 km/h,respectively. Despite stopping for 15 minutes during the journey, Y reaches 10 minutes earlier than X. The distance between the places A and B is:

 

A) 6 km B) 16.5 km
C) 8 km D) 10km
 
Answer & Explanation Answer: D) 10km

Explanation:
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0 309
Q:

A train crosses a platform 180 m long in 60 sec at a speed of 72 km/h. The time taken by the train to cross an electric pole is:

 

A) 51 sec B) 0.51 min
C) 5.1 sec D) 5.1 min
 
Answer & Explanation Answer: A) 51 sec

Explanation:
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1 159
Q:

An express train moves with a speed of 144 km/hr. Calculate the distance covered by train in 15 minutes.

 

A) 35 km B) 32 km
C) 33 km D) 36 km
 
Answer & Explanation Answer: D) 36 km

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0 167
Q:

Rahim started a journey 15 minutes late, and as a result, had to drive at a speed of 54 km/h instead of 45 km/h to reach his destination on time. What is the distance covered during the course of the journey?

 

A) 90 km B) 67.5 km
C) 13.5 km D) 75.5 km
 
Answer & Explanation Answer: B) 67.5 km

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2 517
Q:

The distance between place X and Y is 720 km. An express train leaves place X at 5:00 p.m. and runs at a speed of 45 km/hr. The train stops on the way for 45 minutes.
At what time (in a.m.) the train reaches at place Y?

A) 1:45 B) 9:45
C) 7:15 D) 12:15
 
Answer & Explanation Answer: B) 9:45

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1 166
Q:

Driving @ 48kmhrBarun reached the destination 2 minutes ahead of time. If he drove @ 42kmhrhe would have been 1 minute late. What is the distance that Barun drove?

 

A) 17.6 km B) 17.2 km
C) 16.4 km D) 16.8 km
 
Answer & Explanation Answer: D) 16.8 km

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0 565
Q:

Shamim had to travel 420 km in 8 hours. If he travelled at an average speed of 60 km/h and took two breaks in between, the shorter break being one-third the duration of the longer, how many minutes was the longer break for?

 

A) 45 B) 30
C) 40 D) 35
 
Answer & Explanation Answer: A) 45

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0 186
Q:

Amit travelled a distance of 50 km in 9 hours. He travelled partly on foot at 5 km/h and partly by bicycle at 10 km/h. The distance travelled on the bicycle is:

 

A) 11 km B) 10 km
C) 13 km D)  12 km
 
Answer & Explanation Answer: B) 10 km

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0 213