Number System Questions Practice Question and Answer

Q:

How many natural numbers less than 1000 are divisible by 5 or 7 but not by 35?

1498 0

  • 1
    243
    Correct
    Wrong
  • 2
    341
    Correct
    Wrong
  • 3
    285
    Correct
    Wrong
  • 4
    313
    Correct
    Wrong
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Answer : 3. "285"

Q:

4/5 of a number is 10 more than two-thirds of the same number. What is that number?

1108 0

  • 1
    70
    Correct
    Wrong
  • 2
    69
    Correct
    Wrong
  • 3
    75
    Correct
    Wrong
  • 4
    85
    Correct
    Wrong
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Answer : 3. "75"

Q:

The mean of the first 7 prime numbers is:

805 0

  • 1
    7
    Correct
    Wrong
  • 2
    13
    Correct
    Wrong
  • 3
    5
    Correct
    Wrong
  • 4
    11
    Correct
    Wrong
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Answer : 1. "7"

Q:

Find the value of 13/16 share of land whose 9/7 share is worth 10,116.

1172 0

  • 1
    6394.75
    Correct
    Wrong
  • 2
    6302.75
    Correct
    Wrong
  • 3
    6392.75
    Correct
    Wrong
  • 4
    6391.75
    Correct
    Wrong
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Answer : 3. "6392.75"

Q:

Find the mean of first Five Prime Numbers.

1783 1

  • 1
    5.4
    Correct
    Wrong
  • 2
    3.6
    Correct
    Wrong
  • 3
    5.6
    Correct
    Wrong
  • 4
    4.5
    Correct
    Wrong
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Answer : 3. "5.6"

Q:

Four numbers, when arranged in ascending order, are w, x, y and z. The average of the smallest three numbers is 25.5 while the average of the largest three was 29.5. What is the range of the data?

1279 0

  • 1
    10
    Correct
    Wrong
  • 2
    15
    Correct
    Wrong
  • 3
    12
    Correct
    Wrong
  • 4
    14
    Correct
    Wrong
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Answer : 3. "12"

Q:

What should be added to $$ {10 \ over 11} $$ to get the sum $$ {11 \ over 10} $$?

976 0

  • 1
    $$ {1\over 55}$$
    Correct
    Wrong
  • 2
    $$ {2\over 11}$$
    Correct
    Wrong
  • 3
    $$ {21\over 110}$$
    Correct
    Wrong
  • 4
    $$ {1\over 5}$$
    Correct
    Wrong
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Answer : 3. "$$ {21\over 110}$$"

Q:

Two numbers are such that their difference, their sum and their product is in the ratio of 1: 7: 24. The product of numbers is

792 0

  • 1
    24
    Correct
    Wrong
  • 2
    36
    Correct
    Wrong
  • 3
    48
    Correct
    Wrong
  • 4
    60
    Correct
    Wrong
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Answer : 3. "48"

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