Maths Practice Question and Answer

Q:

рдпрджрд┐┬а$$ {x+{1\over x}=7}$$ ┬ард╣реИ рддреЛ┬а$$ {x^{2}+{1\over {x^{2}}}=?}$$┬ардХрд╛ рдорд╛рди рд╣реЛрдЧрд╛?

1035 0

  • 1
    47
    Correct
    Wrong
  • 2
    45
    Correct
    Wrong
  • 3
    49
    Correct
    Wrong
  • 4
    51
    Correct
    Wrong
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Answer : 1. "47"

Q:

рдпрджрд┐┬а$$ {\sqrt{2x+9}+x=13}$$ ┬ард╣реИ рддреЛ┬аx┬ардХрд╛ рдорд╛рди рд╣реЛрдЧрд╛?

1304 0

  • 1
    -20
    Correct
    Wrong
  • 2
    80
    Correct
    Wrong
  • 3
    8
    Correct
    Wrong
  • 4
    рдЗрдирдореЗрдВ рд╕реЗ рдХреЛрдИ рдирд╣реАрдВ
    Correct
    Wrong
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Answer : 3. "8"

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Answer : 3. "6 рдХрд┐рд▓реЛ"

Q:

$$ {2\over 5},{3\over 10},{4\over 15}$$┬ард▓рдШреБрддреНрддрдо рд╕рдорд╛рдкрд░реНрд╡рддрдХ рдХреНрдпрд╛ рд╣реИтАФ

957 0

  • 1
    $$ {12\over 15}$$
    Correct
    Wrong
  • 2
    $$ {1\over 30}$$
    Correct
    Wrong
  • 3
    $$ {12\over 5}$$
    Correct
    Wrong
  • 4
    рдЗрдирдореЗрдВ рд╕реЗ рдХреЛрдИ рдирд╣реАрдВ
    Correct
    Wrong
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Answer : 3. "$$ {12\over 5}$$"

Q:

If 1.5a=0.04 b then find out the value of $$ {b-a\over b+a}$$.

1302 0

  • 1
    $$ {73\over 77}$$
    Correct
    Wrong
  • 2
    $$ {77\over 33}$$
    Correct
    Wrong
  • 3
    $$ {2\over 75}$$
    Correct
    Wrong
  • 4
    $$ {75\over 2}$$
    Correct
    Wrong
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Answer : 1. "$$ {73\over 77}$$"

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