Decimal Fraction Questions Practice Question and Answer

Q:

Which of the following fractions is greater than $$ {3\over 4}$$  and less than $$ {5\over 6}$$?

1495 0

  • 1
    $$ {4\over 5}$$
    Correct
    Wrong
  • 2
    $$ {1\over 2}$$
    Correct
    Wrong
  • 3
    $$ {2\over 3}$$
    Correct
    Wrong
  • 4
    $$ {9\over 10}$$
    Correct
    Wrong
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Answer : 1. "$$ {4\over 5}$$"

Q:

What is the degree of the differential equation $$y=x\left({dy\over dx} \right)^2+ \left({dx\over dy} \right)^2 ? $$

405 0

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

Q:

If the differernce between the reciprocal of a positive proper fraction and fraction itself be$$17\over42$$, then the fraction is:

955 0

  • 1
    $$9\over8$$
    Correct
    Wrong
  • 2
    $$8\over9$$
    Correct
    Wrong
  • 3
    $$5\over8$$
    Correct
    Wrong
  • 4
    $$7\over9$$
    Correct
    Wrong
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Answer : 2. "$$8\over9$$"

Q:

Which of the following is equal to 1.41 × 106 ?

1049 0

  • 1
    14100
    Correct
    Wrong
  • 2
    141
    Correct
    Wrong
  • 3
    1410000
    Correct
    Wrong
  • 4
    1.41
    Correct
    Wrong
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Answer : 3. "1410000"

Q: Which of the following fraction is the largest? 1153 1

  • 1
    7/12
    Correct
    Wrong
  • 2
    9/16
    Correct
    Wrong
  • 3
    13/20
    Correct
    Wrong
  • 4
    32/80
    Correct
    Wrong
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Answer : 1. "7/12"
Explanation :

Answer: A) 7/12 Explanation: Here to say which fraction is greater from the given options, the fraction with greater numerator with same denominator or smaller denominator with same numerator. To find the greater fraction, among the given options, make the denominators same for the options by finding the LCM of all the denominators. 7/12, 9/16, 13/20, 32/80 Now, LCM of 12, 16, 20, 80 = 240. Then, 140/240, 135/240, 156/240, 96/240 Here  156240 > 140240 > 135240 > 96240=> 1320 > 712 > 916 > 3280   Hence, largest fraction = 13/20.

Q:

If $$ 5^{5x+1}=1 $$, then x equals

1127 0

  • 1
    0
    Correct
    Wrong
  • 2
    -1
    Correct
    Wrong
  • 3
    1
    Correct
    Wrong
  • 4
    $$ -{4\over5}$$
    Correct
    Wrong
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Answer : 2. "-1"

Q:

Find the value of $$ {^3\sqrt{\sqrt{.000064}}}$$.

766 0

  • 1
    0.002
    Correct
    Wrong
  • 2
    0.0002
    Correct
    Wrong
  • 3
    0.2
    Correct
    Wrong
  • 4
    0.02
    Correct
    Wrong
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Answer : 3. "0.2"

Q:

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

729 0

  • 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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