Maths Practice Question and Answer

Q:

A alone would take 6 hours more to complete the job than if both A and B would work together. When B worked alone he took 1.5 hours more to complete the job and A and B worked together. How much time they will take if they if they work together?

2457 0

  • 1
    3 hours
    Correct
    Wrong
  • 2
    4 hours
    Correct
    Wrong
  • 3
    4.5 hours
    Correct
    Wrong
  • 4
    5 hours
    Correct
    Wrong
  • 5
    None of these
    Correct
    Wrong
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Answer : 1. "3 hours"

Q:

While travelling downstream, a man can row 16 km more in 4 hours as compared to travelling upstream. What is the speed of the stream?

2456 0

  • 1
    1.5 km/h
    Correct
    Wrong
  • 2
    1 km/h
    Correct
    Wrong
  • 3
    2 km/h
    Correct
    Wrong
  • 4
    1.25 km/h
    Correct
    Wrong
  • 5
    None of these
    Correct
    Wrong
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Answer : 3. "2 km/h"

Q:

A man loses 20% of his money. After spending 25% of the remainder, he has Rs.480 left with him. How much money did he originally have?

2455 0

  • 1
    872
    Correct
    Wrong
  • 2
    840
    Correct
    Wrong
  • 3
    800
    Correct
    Wrong
  • 4
    820
    Correct
    Wrong
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Answer : 3. "800"

Q:

At what time between 6 to7 O ' clock minute and hour hand will coincide? 

2454 0

  • 1
    $$ 6:38{2\over 11} $$
    Correct
    Wrong
  • 2
    $$ 6:43{7\over 11} $$
    Correct
    Wrong
  • 3
    $$ 6:32{8\over 11} $$
    Correct
    Wrong
  • 4
    $$ 6:5{5\over 11} $$
    Correct
    Wrong
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Answer : 3. " $$ 6:32{8\over 11} $$"
Explanation :

undefined

Q:

If the difference between the roots of the equation Ax2+BX+C = 0 is 4, then which of the following is TRUE?

2450 0

  • 1
    $$B^2 - 16A^2 = 4AC + 4B^2 $$
    Correct
    Wrong
  • 2
    $$B^2 - 10A^2 = 4AC + 6A^2$$
    Correct
    Wrong
  • 3
    $$B^2 - 8A^2 = 4AC + 10A^2 $$
    Correct
    Wrong
  • 4
    $$B^2 - 16A^2 = 4A^C + 8B^2$$
    Correct
    Wrong
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Answer : 2. "$$B^2 - 10A^2 = 4AC + 6A^2$$"

Q:

Sumit got 186 marks in Science, 158 marks in Hindi and 78 marks in Maths. The maximum marks in Science is 220, 180 in Hindi and 130 in Maths. What is his approximate total percentage marks?

2450 0

  • 1
    76
    Correct
    Wrong
  • 2
    89
    Correct
    Wrong
  • 3
    85
    Correct
    Wrong
  • 4
    80
    Correct
    Wrong
  • 5
    91
    Correct
    Wrong
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Answer : 4. "80 "

Q:

16 men can complete a piece of work in 7 days. In how many days will 28 men complete the same work?

2449 0

  • 1
    3 days
    Correct
    Wrong
  • 2
    4 days
    Correct
    Wrong
  • 3
    6 days
    Correct
    Wrong
  • 4
    8 days
    Correct
    Wrong
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Answer : 2. "4 days"

Q: A pole is crossed by a train in 25 seconds and 360 metre. Long platform is crossed in 37 seconds. Find length of train? 2449 0

  • 1
    600 metre
    Correct
    Wrong
  • 2
    750 metre
    Correct
    Wrong
  • 3
    800 metre
    Correct
    Wrong
  • 4
    900 metre
    Correct
    Wrong
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Answer : 2. "750 metre"

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