Practice Question and Answer

Q: भारतीय राजनीति में कौन सा सर्वोच्च है? 3671 1

  • 1
    सुप्रीम कोर्ट
    Correct
    Wrong
  • 2
    संविधान
    Correct
    Wrong
  • 3
    संसद
    Correct
    Wrong
  • 4
    धर्म
    Correct
    Wrong
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Answer : 2. "संविधान"

Q: The core of an electromagnet is made of soft iron because soft iron has 3668 0

  • 1
    small susceptibility and small retentivity
    Correct
    Wrong
  • 2
    large susceptibility and small retentivity
    Correct
    Wrong
  • 3
    large density and large retentivity
    Correct
    Wrong
  • 4
    small density and large retentivity
    Correct
    Wrong
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Answer : 2. "large susceptibility and small retentivity"
Explanation :

Answer: B) large susceptibility and small retentivity Explanation:

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Answer : 3. "21"

Q: Mother’s age today is thrice as her daughter’s. After 10 years it would be just double. How old is the daughter today ? 3666 0

  • 1
    8 years
    Correct
    Wrong
  • 2
    9 years
    Correct
    Wrong
  • 3
    10 years
    Correct
    Wrong
  • 4
    11 years
    Correct
    Wrong
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Answer : 3. "10 years"
Explanation :

Answer: C) 10 years Explanation: Let the age of the daughter today be ‘x’ years. Mother’s age today = 3x years After 10 years, we have 3x + 10 = 2(x + 10) x = 10 years.

Q: Ratio of the ages of Mahesh and Nilesh is 5 : x. Mahesh is 18 years younger to Ramesh. After nine years Ramesh will be 47 years old. If the difference between the ages of Mahesh and Nilesh is same as the age of Ramesh, what is the value of x ? 3666 0

  • 1
    11.8
    Correct
    Wrong
  • 2
    12.9
    Correct
    Wrong
  • 3
    13.7
    Correct
    Wrong
  • 4
    14.5
    Correct
    Wrong
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Answer : 4. "14.5"
Explanation :

Answer: D) 14.5 Explanation: Let the present ages of Mahesh, Nilesh and Ramesh be k, l and m respectively.k/l = 5/x ------ (1)k = m - 18 ------ (2)m + 9 = 47 ------ (3)k - l = m ----- (4)(3) => m = 47 - 9 = 38 years(2) => k = 38 -18 = 20 years(1) => 20/l = 5/x => l = 4x(4) => 4x - 20 = 38=> 4x = 58 => x = 14.5

Q: Which one does not belong to the group? 3665 0

  • 1
    1011
    Correct
    Wrong
  • 2
    1101
    Correct
    Wrong
  • 3
    1111
    Correct
    Wrong
  • 4
    10001
    Correct
    Wrong
  • 5
    441
    Correct
    Wrong
  • 6
    289
    Correct
    Wrong
  • 7
    361
    Correct
    Wrong
  • 8
    343
    Correct
    Wrong
  • 9
    326
    Correct
    Wrong
  • 10
    248
    Correct
    Wrong
  • 11
    392
    Correct
    Wrong
  • 12
    414
    Correct
    Wrong
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Answer : 3. "1111" 7. "361" 8. "343" 11. "392" 12. "414"

Q: A 200 m long train passes a motorcycler, running in the same direction at 12 km/hr, in 15 second and a jeep travelling in the same direction in 20 s. At what speed is the car travelling (length of both the motorcycler and jeep is negligible)? 3665 0

  • 1
    36 kmph
    Correct
    Wrong
  • 2
    32 kmph
    Correct
    Wrong
  • 3
    29 kmph
    Correct
    Wrong
  • 4
    24 kmph
    Correct
    Wrong
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Answer : 4. "24 kmph"
Explanation :

Answer: D) 24 kmph Explanation: Let the speed of the train be 'S' kmph From the given data, Distance = Length of train = D = 200 mts = 200 x 18/5 kms Time = 10 sec given speed of the motorcycler = 12 kmph Relative speed as they are moving in the same direction = (S - 12) kmph (S- 12) = 200 x 18515S - 12 = 48S = 60 kmph  Hence, the speed of the train = S = 60 kmph Now, Let the speed of the jeep be 'x' kmph 60 - x = 200 x 1852060 - x = 36x = 60 - 36x = 24 kmph   Therefore, the speed of the jeep = x = 24 kmph.

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