Decimal Fractions Practice Question and Answer

Q:

Raju ate $$3\over 8$$part of a pizza and Adam ate $$3\over 10$$ part of the remaining pizza. Then Renu ate $$4\over 7$$ part of the pizza that was left. What fraction of the pizza is still left?

401 0

  • 1
    $$5\over 12$$
    Correct
    Wrong
  • 2
    $$1\over 4$$
    Correct
    Wrong
  • 3
    $$1\over 8$$
    Correct
    Wrong
  • 4
    $$3\over 16$$
    Correct
    Wrong
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Answer : 4. "$$3\over 16$$"

Q:

The numerator of a fraction is 3 more than the denominator. When 5 is added to the numerator and 2 is subtracted from the denominator, the fraction becomes $$8\over 3$$ . When the original fraction is divided by$$5{1\over 2}$$, the fraction so obtained is:

214 0

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

Q:

Select the number that will come in place of the question mark (?) in the following mathematical statement.

$${5\over 9} \ of \ {11\over 14}\ 42\% \ of \ 540=?^2 -45 $$

835 0

  • 1
    12
    Correct
    Wrong
  • 2
    9
    Correct
    Wrong
  • 3
    13
    Correct
    Wrong
  • 4
    17
    Correct
    Wrong
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Answer : 1. "12"

Q:

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

452 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:

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

1023 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:

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

843 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:

How many positive factors does 325 have?

489 0

  • 1
    6
    Correct
    Wrong
  • 2
    8
    Correct
    Wrong
  • 3
    12
    Correct
    Wrong
  • 4
    9
    Correct
    Wrong
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Answer : 1. "6"

Q:

Find the least number which when subtracted from 10.000327 is a perfect square.

461 0

  • 1
    0.0003
    Correct
    Wrong
  • 2
    0.00003
    Correct
    Wrong
  • 3
    0.0085
    Correct
    Wrong
  • 4
    0.000003
    Correct
    Wrong
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Answer : 4. "0.000003"

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