Q1 . When a person runs at 54 km/h he reaches his office 10 minutes early than an hour.what is the distance between home and office?

1. 42 kms

2. 45 kms

3. 48 kms

4. 40 kms

Check Answer

Correct Answer is

45 kms

SOLUTION

since the time taken is 50 minutes

distance covered in 50 minutes is 45 kms

Q2 . The distance between a mans office and his house is 50 Km.If a man travels at the speed of 5 km/h he reaches his office on time.If a person has to reach the office at 8:00 AM,when should he start?

1. 11:00 PM

2. 12:00 PM

3. 10:30 PM

4. 10:00 PM

Check Answer

Correct Answer is

10:00 PM

SOLUTION

Time taken to cover the distance 10 hours

so to reach 8:00 AM

He should start at 10 PM

Q3 . There are two people who start from their home towns at 8:00 AM.The places are 200 km apart .If A travels at 25 km/h and B at 30 km/h by taking if he walks continously ,but he walks only half an hour and half an hour of rest then travels.When will they meet each other?

1. 2:00 PM

2. 1:30 PM

3. 1:10 PM

4. 1:00 PM

Check Answer

Correct Answer is

1:00 PM

SOLUTION

The speed of B is 15 km/h

The speed of A is 25 km/h

effective speed is 15+25=40km/h

time taken=total distance/effective speed=200/40=5 hrs

since they start at 8:00 AM

They will meet at 1:00 PM

Q4 . The police are chasing a thief travelling at 50 km/h.The police shot the thief and punctured his tire and he stopped after 3 hours.The polic start chasing him at 9:00 AM at the speed of 30 km/h.At what time will they catch the thief?

1. 2:10 AM

2. 12:00 AM

3. 2:00 AM

4. 2:20 AM

Check Answer

Correct Answer is

2:00 AM

SOLUTION

the distance travelled by thief=3x50=150 km

Time taken by police=150/30=5 hrs

if they start at 9:00 AM they would 2:00 AM

Q5 . A and B run around a circular track 150 meters at 20 and 30 m/s respectively.They both run in opposite directions.When will they meet for the 10th time and the distance covered by A?

1. 32 seconds

2. 35 seconds

3. 30 seconds

4. 20 seconds

Check Answer

Correct Answer is

30 seconds

SOLUTION

since distance is 150 and effective speed (30+20)50 m/s.Time taken=150/50=3 seconds

they will meet for the 10th time in 30 seconds

distance travelled by A is 30x20=600 meters

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