Maths Practice Question and Answer

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Answer : 5. "19% more"

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Answer : 1. "140 kg"

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Answer : 2. "4:5"

Q:

A man can row 52 km upstream and 42 km downstream in 10 hours. It is also known that he can row 66 km downstream and 60 km upstream in 13 hours. Find the speed of the man in still water.

492 0

  • 1
    8 km/hr
    Correct
    Wrong
  • 2
    12 km/hr
    Correct
    Wrong
  • 3
    6 km/hr
    Correct
    Wrong
  • 4
    10 km/h
    Correct
    Wrong
  • 5
    None of these
    Correct
    Wrong
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Answer : 4. "10 km/h"

Q:

A bus can travel a distance of 1330 Km in 19 hours. Speed of a bike is 50% less than the speed of the bus and speed of a cycle is 15 Km/h less than the speed of the bike. Find the respective ratio of the time taken by cycle and bike to cover a distance of 280 km.

417 0

  • 1
    4: 7
    Correct
    Wrong
  • 2
    5: 7
    Correct
    Wrong
  • 3
    7: 4
    Correct
    Wrong
  • 4
    3: 4
    Correct
    Wrong
  • 5
    5: 4
    Correct
    Wrong
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Answer : 3. "7: 4"

Q:

Piyush formed a larger cube from the material obtained by melting three smaller cubes of 3, 4 and 5 cm side. What is the ratio of the total surface areas of the smaller cubes and the large cube?

427 0

  • 1
    6 : 5
    Correct
    Wrong
  • 2
    5 : 6
    Correct
    Wrong
  • 3
    25 : 18
    Correct
    Wrong
  • 4
    18 : 25
    Correct
    Wrong
  • 5
    None of these
    Correct
    Wrong
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Answer : 3. "25 : 18"

Q:

Average age of x students in a group is 20. When 4 new students are admitted with a age of 7.5 years each, then the average is decreased by 5. What is the value of x?

518 0

  • 1
    5
    Correct
    Wrong
  • 2
    3
    Correct
    Wrong
  • 3
    7
    Correct
    Wrong
  • 4
    6
    Correct
    Wrong
  • 5
    4
    Correct
    Wrong
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Answer : 4. "6"

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