Number System Questions Practice Question and Answer

Q:

A number which when divided by 10 leaves a remainder of 9 , when divided by 9 leaves a remainder of 8 , and when divided by 8 leaves a remainder of 7 , is :

811 0

  • 1
    1539
    Correct
    Wrong
  • 2
    539
    Correct
    Wrong
  • 3
    359
    Correct
    Wrong
  • 4
    1359
    Correct
    Wrong
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Answer : 3. "359 "

Q:

A four digit number is formed by writing a two digit number together twice like: 15:15, -3737 etc. A number of this form will be exactly divisible by which of the following numbers 

811 0

  • 1
    125
    Correct
    Wrong
  • 2
    101
    Correct
    Wrong
  • 3
    123
    Correct
    Wrong
  • 4
    147
    Correct
    Wrong
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Answer : 3. "123"

Q:

A number when divided by 192 gives a remainder of 54. What remainder would be obtained on dividing the same number by 16 ?

809 0

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

Here, the first divisor 192 is a multiple of second divisor 16.

∴ Required remainder

= remainder obtained by dividing 54 by 16 = 6

Q:

If two numbers are each divided by the same divisor, the remainders are respectively 3 and 4. If the sum of the two numbers be divided by the same divisor, the remainder is 2. The divisor is 

801 0

  • 1
    9
    Correct
    Wrong
  • 2
    7
    Correct
    Wrong
  • 3
    5
    Correct
    Wrong
  • 4
    3
    Correct
    Wrong
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Answer : 3. "5 "
Explanation :

Required divisor = 3 + 4 – 2 = 5

Q:

If the 5-digit number 535ab is divisible by 3, 7 and 11, then what is the value of (a2 - b2 + ab)?

801 0

  • 1
    77
    Correct
    Wrong
  • 2
    89
    Correct
    Wrong
  • 3
    95
    Correct
    Wrong
  • 4
    83
    Correct
    Wrong
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Answer : 3. "95"

Q:

Which one of the following represents the number' eleven thousand eleven hundred eleven'?

800 0

  • 1
    111111
    Correct
    Wrong
  • 2
    12111
    Correct
    Wrong
  • 3
    11000110011
    Correct
    Wrong
  • 4
    XIXIXI
    Correct
    Wrong
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Answer : 2. "12111 "

Q:

In a division sum, the divisor is ten times the quotient and five times the remainder. If the remainder is 46, find the dividend.

798 0

  • 1
    5336
    Correct
    Wrong
  • 2
    5391
    Correct
    Wrong
  • 3
    5388
    Correct
    Wrong
  • 4
    5343
    Correct
    Wrong
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Answer : 1. "5336"

Q:

The largest three-digit number that gives the same remainder 2 when divided by 3, 5 and 9 is ________.

794 0

  • 1
    999
    Correct
    Wrong
  • 2
    984
    Correct
    Wrong
  • 3
    998
    Correct
    Wrong
  • 4
    992
    Correct
    Wrong
  • Show Answer
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Answer : 4. "992"

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