Decimal Fractions Practice Question and Answer

Q:

Express 35% as a simple fraction:

567 0

  • 1
    $${7\over20}$$
    Correct
    Wrong
  • 2
    $${5\over8}$$
    Correct
    Wrong
  • 3
    $${6\over7}$$
    Correct
    Wrong
  • 4
    $${9\over5}$$
    Correct
    Wrong
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Answer : 1. "$${7\over20}$$"

Q:

Find the sum of the factors of 3240

1142 0

  • 1
    10890
    Correct
    Wrong
  • 2
    11000
    Correct
    Wrong
  • 3
    10800
    Correct
    Wrong
  • 4
    10190
    Correct
    Wrong
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Answer : 1. "10890 "

Q:

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

450 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:

When 0.090909.....is converted into a fraction, then the result is

555 0

  • 1
    1/11
    Correct
    Wrong
  • 2
    2/33
    Correct
    Wrong
  • 3
    6/11
    Correct
    Wrong
  • 4
    1/33
    Correct
    Wrong
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Answer : 1. "1/11"

Q:

What is the value of ½ % in decimals ?

742 0

  • 1
    0.0005
    Correct
    Wrong
  • 2
    0.005
    Correct
    Wrong
  • 3
    0.05
    Correct
    Wrong
  • 4
    0.5
    Correct
    Wrong
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Answer : 2. "0.005"

Q: Which of the following fraction is the largest? 1212 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:

The difference between a fraction and its reciprocal is 9/11. If the cubes of both the fraction and its reciprocal are considered, what will be the difference between them?

1257 0

  • 1
    3996/1331
    Correct
    Wrong
  • 2
    -1331/2538
    Correct
    Wrong
  • 3
    729/1331
    Correct
    Wrong
  • 4
    -2538/1331
    Correct
    Wrong
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Answer : 1. "3996/1331"

Q:

If 3 added to both the numerator and the denominator, the fraction becomes 10/11 when 4 is subtracted from both the 4 numerator and the denominator of the same fraction, it becomes ¾. What is the value of the fraction?

757 0

  • 1
    3/5
    Correct
    Wrong
  • 2
    7/8
    Correct
    Wrong
  • 3
    ¾
    Correct
    Wrong
  • 4
    6/13
    Correct
    Wrong
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Answer : 2. "7/8"

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