Maths Practice Question and Answer

Q:

The sum of square of three positive integers is 323. If the sum of squares of two numbers is twice the third, their product is

838 0

  • 1
    255
    Correct
    Wrong
  • 2
    260
    Correct
    Wrong
  • 3
    265
    Correct
    Wrong
  • 4
    270
    Correct
    Wrong
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Answer : 1. "255"

Q:

The sum of three numbers is 252. If the first number is thrice the second and third number is two-third of the first, then the second number is

846 0

  • 1
    41
    Correct
    Wrong
  • 2
    21
    Correct
    Wrong
  • 3
    42
    Correct
    Wrong
  • 4
    84
    Correct
    Wrong
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Answer : 3. "42"

Q:

A complete factorization of x4+64 is 

818 0

  • 1
    $$\left(x^2+8 \right)^2 \ $$
    Correct
    Wrong
  • 2
    $$\left(x^2+8 \right) \ (x^2-8)$$
    Correct
    Wrong
  • 3
    $$\left(x^2-4x+8 \right) \ (x^2-4x-8)$$
    Correct
    Wrong
  • 4
    $$\left(x^2+4x+8 \right) \ (x^2-4x+8)$$
    Correct
    Wrong
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Answer : 4. "$$\left(x^2+4x+8 \right) \ (x^2-4x+8)$$"

Q:

If p3 – q3 = (p-q)[(p-q)2+xpq)] then the value of x is

986 0

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

Q:

If $$\sqrt { 3}=1.732$$ then the find the value of $${9+2{ \sqrt { 3}}}\over  \sqrt { 3}$$  

1022 0

  • 1
    7.169
    Correct
    Wrong
  • 2
    7.196
    Correct
    Wrong
  • 3
    5.198
    Correct
    Wrong
  • 4
    7.296
    Correct
    Wrong
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Answer : 2. "7.196"

Q:

The value exponential form of   $$\sqrt {\sqrt{2}×{\sqrt{3}}}$$

1113 0

  • 1
    $$6^{-1\over 2}$$
    Correct
    Wrong
  • 2
    $$6^{1\over 2}$$
    Correct
    Wrong
  • 3
    $$6^{1\over 4}$$
    Correct
    Wrong
  • 4
    6
    Correct
    Wrong
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Answer : 3. "$$6^{1\over 4}$$"

Q:

  The value of $${{1}\over 1+\sqrt { 2} + \sqrt { 3}}+{{1}\over 1-\sqrt { 2} + \sqrt { 3}} $$ is

919 0

  • 1
    $$\sqrt { 2}$$
    Correct
    Wrong
  • 2
    $$\sqrt { 3}$$
    Correct
    Wrong
  • 3
    1
    Correct
    Wrong
  • 4
    $$\left( {4}\sqrt { 3}+ \sqrt { 2}\right)$$
    Correct
    Wrong
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Answer : 1. "$$\sqrt { 2}$$"

Q:

The numerical value of $$ {1\over 1+cot2}+{3\over 1+tan^2θ}+2sin^2θ$$ will be 

865 0

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

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