Maths Practice Question and Answer

Q:

A boat running downstreams covers a distance of 30 kms in 2 hours. While coming back the boat takes 6 hours to cover the same distance. If the speed  of the current is half that of the boat, what is the speed of that boat in kmph?

1694 0

  • 1
    15
    Correct
    Wrong
  • 2
    5
    Correct
    Wrong
  • 3
    10
    Correct
    Wrong
  • 4
    Cannot be determined
    Correct
    Wrong
  • 5
    None of these
    Correct
    Wrong
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Answer : 3. "10"

Q: In how much time a train 270-meter-long running at 54 km/hrs. Can cross a person? 1693 0

  • 1
    18 second
    Correct
    Wrong
  • 2
    15 second
    Correct
    Wrong
  • 3
    12 second
    Correct
    Wrong
  • 4
    20 second
    Correct
    Wrong
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Answer : 1. "18 second"
Explanation :

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Q:

If x = 2 then the value of $$ x^3 + 27x^2 + 243x + 631$$ is:

1692 0

  • 1
    1211
    Correct
    Wrong
  • 2
    1231
    Correct
    Wrong
  • 3
    1233
    Correct
    Wrong
  • 4
    1321
    Correct
    Wrong
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Answer : 3. "1233"

Q:

Study the table and answer the questions and give answer the following questions.

Supposing that there were 40 students in sciences in the year 2009. How much total of marks did they receive combined together?

1692 0

  • 1
    2800
    Correct
    Wrong
  • 2
    2720
    Correct
    Wrong
  • 3
    2560
    Correct
    Wrong
  • 4
    3000
    Correct
    Wrong
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Answer : 2. "2720"

Q: In a election between two candidates, one got 55% of the total valid votes, 20% of the votes were invalid. If the total number of votes was 7500, the number of valid votes that the other candidate got, was: 1692 0

  • 1
    2700
    Correct
    Wrong
  • 2
    2900
    Correct
    Wrong
  • 3
    3000
    Correct
    Wrong
  • 4
    3100
    Correct
    Wrong
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Answer : 1. "2700"

Q:

O and C are respectively the orthocentre and the circumcentre of an acute angled triangle POR. The points P and O are joined and produced to meet the side QR at S. If ∠POS=600 and ∠QCR = 130°, then ∠RPS = ?

1691 0

  • 1
    30°
    Correct
    Wrong
  • 2
    35°
    Correct
    Wrong
  • 3
    100°
    Correct
    Wrong
  • 4
    60°
    Correct
    Wrong
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Answer : 2. "35° "

Q:

The value of  $${cosec^2} 18° -{1\over cot^272°}$$.

1691 0

  • 1
    $${1 \over \sqrt { 3}}$$
    Correct
    Wrong
  • 2
    $$ \sqrt2\over {3 } $$
    Correct
    Wrong
  • 3
    $${1\over2} $$
    Correct
    Wrong
  • 4
    1
    Correct
    Wrong
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Answer : 4. "1"

Q:

There are 45 trees in a row. The lemon tree is 20th from right end. What is the rank of lemon tree from left end?

1690 0

  • 1
    26
    Correct
    Wrong
  • 2
    24
    Correct
    Wrong
  • 3
    25
    Correct
    Wrong
  • 4
    27
    Correct
    Wrong
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Answer : 1. "26"

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