Maths Practice Question and Answer

Q:

If p = 124, $$3\sqrt{p(p^2-3p+3)-1}=?$$

754 0

  • 1
    5
    Correct
    Wrong
  • 2
    7
    Correct
    Wrong
  • 3
    123
    Correct
    Wrong
  • 4
    125
    Correct
    Wrong
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Answer : 4. "125"

Q:

The value of $${0.7×0.7×0.7+0.3×0.3×0.3}\over {0.7×0.7-0.7×0.3+0.3×0.3}$$ is

754 0

  • 1
    2
    Correct
    Wrong
  • 2
    1
    Correct
    Wrong
  • 3
    3
    Correct
    Wrong
  • 4
    -1
    Correct
    Wrong
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Answer : 2. "1"

Q:

Twenty-one time of a positive number is less than its square by 100. The value of the positive number is

753 0

  • 1
    25
    Correct
    Wrong
  • 2
    26
    Correct
    Wrong
  • 3
    42
    Correct
    Wrong
  • 4
    41
    Correct
    Wrong
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Answer : 3. "42"

Q:

There is a profit of 10% when an item is sold at $${{5\over6}}$$ of its actual selling price. What will be the profit percentage on the cost price when the item is sold at its actual selling price?

753 0

  • 1
    28%
    Correct
    Wrong
  • 2
    32%
    Correct
    Wrong
  • 3
    26%
    Correct
    Wrong
  • 4
    30%
    Correct
    Wrong
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Answer : 2. "32%"

Q:

LCM of two numbers is 56 times their HCF, with the sum of their HCF and LCM being 1710. If one of the two numbers is 240, then what is the other number?

753 0

  • 1
    1680
    Correct
    Wrong
  • 2
    171
    Correct
    Wrong
  • 3
    210
    Correct
    Wrong
  • 4
    57
    Correct
    Wrong
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Answer : 3. "210"

Q:

Directions : The pie graph indicates the break-up of the cost of construction of a house. Assuming that the total cost of construction is Rs 6,00,000, answer the following questions. 

The amount spent on labor exceeds the amount spent on supervision by :  

752 0

  • 1
    ₹ 1,00,000
    Correct
    Wrong
  • 2
    ₹ 1,20,000
    Correct
    Wrong
  • 3
    ₹ 60,000
    Correct
    Wrong
  • 4
    ₹ 30,000
    Correct
    Wrong
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Answer : 3. "₹ 60,000 "

Q:

 if $$x^4+{16\over x^4}=15617, x>0$$ then find the value of $$x+{2\over x}$$

752 0

  • 1
    $$ \sqrt {121} $$
    Correct
    Wrong
  • 2
    $$ \sqrt {127} $$
    Correct
    Wrong
  • 3
    $$ \sqrt {129} $$
    Correct
    Wrong
  • 4
    $$ \sqrt {123} $$
    Correct
    Wrong
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Answer : 3. "$$ \sqrt {129} $$"

Q:

Directions: In the following question, two equations are given in variables X and Y. You have to solve these equations and determine the relation between X and Y.

I. X3 = 125
II. Y3 = 8

752 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 no relation can be established
    Correct
    Wrong
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Answer : 1. "X > Y"

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