Maths Practice Question and Answer

Q:

Direction: In the given question, two equations numbered l and II are given. Solve both the equations and mark the appropriate answer.

I. x² + 13x + 42 = 0
II. y² – 2y - 63 = 0

303 0

  • 1
    x > y
    Correct
    Wrong
  • 2
    x < y
    Correct
    Wrong
  • 3
    x ≥ y
    Correct
    Wrong
  • 4
    x ≤ y
    Correct
    Wrong
  • 5
    x = y or the relationship between x and y cannot be established.
    Correct
    Wrong
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Answer : 5. "x = y or the relationship between x and y cannot be established."

Q:

Length of train A is half as that of train B. Train A and B crosses the platform of length 100 meters in 5 seconds and 6 seconds respectively. If the ratio of speed of train A and B is 2 : 3, Find the length of train B.

653 0

  • 1
    450 m
    Correct
    Wrong
  • 2
    800 m
    Correct
    Wrong
  • 3
    600 m
    Correct
    Wrong
  • 4
    900 m
    Correct
    Wrong
  • 5
    750 m
    Correct
    Wrong
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Answer : 2. "800 m"

Q:

A vessel contains some mixture of Water and Alcohol in the ratio 2 ∶ 1. 12 liters of mixture is removed and replaced with water and the final ratio becomes 4: 1. What is the amount of Alcohol in the initial Mixture?

687 0

  • 1
    12 litres
    Correct
    Wrong
  • 2
    15 litres
    Correct
    Wrong
  • 3
    20 litres
    Correct
    Wrong
  • 4
    10 litres
    Correct
    Wrong
  • 5
    12.5 litres
    Correct
    Wrong
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Answer : 4. "10 litres"

Q:

A started the business with the investment of Rs. 36000. B and C joined him with some investments after 3 and 6 months. The profit is divided in the ratio of 2 ∶ 3 ∶ 5 at the end of the year. Find the difference between the investment made by B and C in the business.

639 0

  • 1
    Rs. 72000
    Correct
    Wrong
  • 2
    Rs. 90000
    Correct
    Wrong
  • 3
    Rs. 81000
    Correct
    Wrong
  • 4
    Rs. 120000
    Correct
    Wrong
  • 5
    Rs. 108000
    Correct
    Wrong
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Answer : 5. "Rs. 108000"

Q:

The difference between the compound interest (compounded annually) and simple interest on a sum of money deposited for 2 years at 5% per annum is Rs. 15. What is the sum of money deposited?

466 0

  • 1
    Rs. 6,000
    Correct
    Wrong
  • 2
    Rs. 4,800
    Correct
    Wrong
  • 3
    Rs. 3,600
    Correct
    Wrong
  • 4
    Rs. 2,400
    Correct
    Wrong
  • 5
    Rs. 3,400
    Correct
    Wrong
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Answer : 1. "Rs. 6,000"

Q:

P can do a task in 30 days, Q is 50% more efficient than P, R can do the same work in 10 days less than Q if R and Q start task together and after X days they left the task and P completed the remaining task in (X + 8) days. then find the value of X?

598 0

  • 1
    2
    Correct
    Wrong
  • 2
    4
    Correct
    Wrong
  • 3
    5
    Correct
    Wrong
  • 4
    8
    Correct
    Wrong
  • 5
    6
    Correct
    Wrong
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Answer : 2. "4"

Q:

The ratio of present ages of P and Q is 3:4. The ratio of their ages 27 years hence would be 6:7. If P is 9 years younger than Q then, what would be the present age of Q?

406 0

  • 1
    36 years
    Correct
    Wrong
  • 2
    45 years
    Correct
    Wrong
  • 3
    54 years
    Correct
    Wrong
  • 4
    30 years
    Correct
    Wrong
  • 5
    41 years
    Correct
    Wrong
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Answer : 1. "36 years"

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