Maths Practice Question and Answer

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Answer : 4. "₹ 63,000"

Q:

If $$x=(\sqrt2+1)^{1\over3} $$, the value of $$(x^3-{1\over {x^3}}) $$ is

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  • 1
    0
    Correct
    Wrong
  • 2
    $$-\sqrt { 2} \ $$
    Correct
    Wrong
  • 3
    2
    Correct
    Wrong
  • 4
    $$3\sqrt { 2} \ $$
    Correct
    Wrong
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Answer : 3. "2"

Q:

The greatest 4-digit number which is a perfect square is

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  • 1
    9999
    Correct
    Wrong
  • 2
    9909
    Correct
    Wrong
  • 3
    9801
    Correct
    Wrong
  • 4
    9081
    Correct
    Wrong
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Answer : 3. "9801"

Q:

If a discount of 10% is allowed on the marked price of an article, a shopkeeper gets a profit of 25 %. If he offers a discount of 25% on the marked price of the same article, then his percentage profit/loss will be:

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  • 1
    4 % profit
    Correct
    Wrong
  • 2
    $$ {4 {1\over 6}}{ \%}$$ loss
    Correct
    Wrong
  • 3
    $$ {4 {1\over 6}}{ \%}$$ profit
    Correct
    Wrong
  • 4
    4 % loss
    Correct
    Wrong
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Answer : 3. "$$ {4 {1\over 6}}{ \%}$$ profit"

Q:

A manufacturer fixes his selling price at $$33{1\over3}\% $$ over the cost of production. If the cost of production goes up by 12 % and manufacturer raises his selling price by 10%, his percentage profit is 

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  • 1
    35%
    Correct
    Wrong
  • 2
    $$28{3\over8}\%$$
    Correct
    Wrong
  • 3
    $$36{5\over9}\%$$
    Correct
    Wrong
  • 4
    $$30{20\over21}\%$$
    Correct
    Wrong
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Answer : 4. "$$30{20\over21}\%$$"

Q:

Medha sells her bag for ₹ 300 and loses ₹ 60. At what price must she sell the article to gain 15%?

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  • 1
    146
    Correct
    Wrong
  • 2
    172
    Correct
    Wrong
  • 3
    414
    Correct
    Wrong
  • 4
    516
    Correct
    Wrong
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Answer : 3. "414"

Q:

The speed of a bus Excluding stoppages, is 80 kmph and including stoppages, it is 72 kmph. For how many minutes does the bus stop per hour?

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  • 1
    12
    Correct
    Wrong
  • 2
    18
    Correct
    Wrong
  • 3
    7
    Correct
    Wrong
  • 4
    6
    Correct
    Wrong
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Answer : 4. "6"

Q:

The value of $$ {\sqrt{x^{2}y}\over{\sqrt{xy^{2}}}}×\sqrt{y\over{x}}$$ is

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  • 1
    xy
    Correct
    Wrong
  • 2
    1
    Correct
    Wrong
  • 3
    x
    Correct
    Wrong
  • 4
    y
    Correct
    Wrong
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Answer : 2. "1"

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