Quiz Discussion

A man performs \(\frac{2}{15}\) of the total journey by rail, \(\frac{9}{20}\) by bus and the remaining 10 km, on the cycle. His total journey is :

 

Course Name: Quantitative Aptitude

  • 1] 31.2 km
  • 2] 38.4 km
  • 3] 32.8 km
  • 4] 24 km
Solution
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# Quiz
1
Discuss

Two trains 150 m and 120 m long respectively moving from opposite direction cross each other in 10 sec. If the speed of the second train is 43.2 km/hr, then the speed of the first train is :

  • 1] 54 km/hr
  • 2] 50 km/hr
  • 3] 52 km/hr
  • 4] 51 km/hr
Solution
2
Discuss

A train 300 m long is running with a speed of 54 km/hr. In what time it cross a telephone pole ?

  • 1] 20 seconds
  • 2] 15 seconds
  • 3] 17 seconds
  • 4] 18 seconds
Solution
3
Discuss

A train 350 m long is running at the speed of 36 km/h. If it crosses a tunnel in 1 minute, the length of the tunnel in metres:

  • 1] 200 meters
  • 2] 250 meters
  • 3] 300 meters
  • 4] 150 meters
Solution
4
Discuss

A star is 8.1 × 1013 km away from the earth. Suppose light travels at the speed of 3.0 × 105 km per second. How long will it take the light from the star to reach the earth ?

  • 1] 7.5 × 103 hours
  • 2] 7.5 × 104 hours
  • 3] 2.7 × 1010 seconds
  • 4] 2.7 × 1011 seconds
Solution
5
Discuss

A thief is noticed by a policeman from a distance of 200 m. The thief starts running and the policeman chases him. The thief and the policeman run at the rate of 10 km and 11 km per hour respectively. What is the distance between them after 6 minutes ?

  • 1]

    100 m

  • 2]

    150 m

  • 3]

    190 m

  • 4]

    290 m

Solution
6
Discuss

The distance between two places R and S is 42 km. Anita starts from R with a uniform speed of 4 km/hr towards S and at the same time Romita starts from S towards R also with some uniform speed. They meet each other after 6 hours. The speed of Romita is :

  • 1] 18 km/hr
  • 2] 20 km/hr
  • 3] 3 km/hr
  • 4] 8 km/hr
Solution
7
Discuss

A boy is running at a speed of p kmph to cover a distance of 1 km. But, due to the slippery ground, his speed is reduced by q kmph (p > q). If he takes r hours to cover the distance, then:

  • 1]

    \(\frac{1}{r} = p - q\)

  • 2]

    r = p - q

  • 3]

    \(\frac{1}{r} = p + q\)

  • 4]

    r = p + r

Solution
8
Discuss

A car travels from P to Q at a constant speed. If its speed were increased by 10 km/hr, it would have taken one hour lesser to cover the distance. It would have taken further 45 minutes lesser if the speed was further increased by 10 km/hr. The distance between two cities is :

  • 1] 540 km
  • 2] 420 km
  • 3] 600 km
  • 4] 620 km
Solution
9
Discuss

Car A travels at the speed of 65 km/hr and reaches its destination in 8 hours. Car B travels at the speed of 70 km/hr and reaches its destination in 4 hours. What is the ratio of the distance covered by car A and car B respectively ?

  • 1] 7 : 11
  • 2] 13 : 7
  • 3] 7 : 13
  • 4] 11 : 7
  • 5] None of these
Solution
10
Discuss

A man covers the journey from station A to station B at a uniform speed of 36 kmph and returns to A with a uniform speed of 45 kmph, his average speed for the whole journey is:

  • 1] 40 kmph
  • 2] 40.5 kmph
  • 3] 41 kmph
  • 4] 42 kmph
Solution
# Quiz