Maths Practice Question and Answer

Q:

In solving a problem, one student makes a mistake in the coefficient of the first degree term and obtains – 9 and – 1 for the roots. Another student makes a mistake in the constant term of the equation and obtains 8 and 2 for the roots. The correct equation was 

3290 0

  • 1
    x2 + 10x + 9 = 0
    Correct
    Wrong
  • 2
    x2 – 10x = 16 = 0
    Correct
    Wrong
  • 3
    x2 – 10x + 9 = 0
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 3. "x2 – 10x + 9 = 0"

Q:

Mrs. Deepa Devi saves 30% of her salary. If she receives Rs.42,000 per month as her salary, what is her monthly expenditure?

3289 0

  • 1
    Rs.29,200
    Correct
    Wrong
  • 2
    Rs.29,400
    Correct
    Wrong
  • 3
    Rs.29,300
    Correct
    Wrong
  • 4
    Rs.29,100
    Correct
    Wrong
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Answer : 2. "Rs.29,400"

Q: If one object is sold for 5% instead of 5 % loss the seller gets Rs. 33.6 more. What is the cost Price? 3289 0

  • 1
    336
    Correct
    Wrong
  • 2
    454
    Correct
    Wrong
  • 3
    672
    Correct
    Wrong
  • 4
    785
    Correct
    Wrong
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Answer : 1. "336"

Q: The ratio of managers to management trainees is 3:5. When 21 new management trainees are recruited, the ratio will become 3:8. How many managers will there be in the group? 3283 0

  • 1
    27
    Correct
    Wrong
  • 2
    24
    Correct
    Wrong
  • 3
    21
    Correct
    Wrong
  • 4
    Cannot be determined
    Correct
    Wrong
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Answer : 3. "21"

Q:

The area of trapezium is 21 square cm, the distance between the parallel sides is 3 cm and one of the parallel sides is 8.3 cm. What is the length of the other parallel side ?

3283 1

  • 1
    12.7 cm
    Correct
    Wrong
  • 2
    7.7 cm
    Correct
    Wrong
  • 3
    10.7 cm
    Correct
    Wrong
  • 4
    5.7 cm
    Correct
    Wrong
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Answer : 4. "5.7 cm"

Q: Ram can complete ¼ th part of work in 8 days and Shyam can complete 2/4 th of the work in 6 days and Naresh can complete ¾th the work in 12 days. In how many days can they together complete it? 3273 1

  • 1
    \(6 {11 \over 17 }\)
    Correct
    Wrong
  • 2
    \(5 {11 \over 17 }\)
    Correct
    Wrong
  • 3
    \(8 {11 \over 17 }\)
    Correct
    Wrong
  • 4
    \(7 {11 \over 17 }\)
    Correct
    Wrong
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Answer : 2. "\(5 {11 \over 17 }\)"

Q:

What approximate value should come at place of the question mark(?) in the following question?

3273 0

  • 1
    8
    Correct
    Wrong
  • 2
    38
    Correct
    Wrong
  • 3
    58
    Correct
    Wrong
  • 4
    68
    Correct
    Wrong
  • 5
    18
    Correct
    Wrong
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Answer : 5. "18"

Q:

A used car dealer sells a car for Rs 7.6 lakhs and makes some loss. If he had sold if for Rs.9.2 lakhs his profit would been thrice of his loss. What was the cost price of the car (in Rs. Lakhs)? 

3269 0

  • 1
    8.5
    Correct
    Wrong
  • 2
    8.75
    Correct
    Wrong
  • 3
    8.25
    Correct
    Wrong
  • 4
    8
    Correct
    Wrong
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Answer : 4. "8"

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