Number System Questions Practice Question and Answer

Q:

Any six-digit number that is formed by repeating a three-digit number, is always divisible by:

1079 0

  • 1
    111
    Correct
    Wrong
  • 2
    1001
    Correct
    Wrong
  • 3
    19
    Correct
    Wrong
  • 4
    101
    Correct
    Wrong
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Answer : 2. "1001"

Q:

Find the greatest value of k for which the 6-digit number 24312k is divisible by 6.

1077 0

  • 1
    6
    Correct
    Wrong
  • 2
    4
    Correct
    Wrong
  • 3
    8
    Correct
    Wrong
  • 4
    0
    Correct
    Wrong
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Answer : 1. "6 "

Q:

Which of the following numbers is not a prime number?

1065 0

  • 1
    347
    Correct
    Wrong
  • 2
    461
    Correct
    Wrong
  • 3
    731
    Correct
    Wrong
  • 4
    227
    Correct
    Wrong
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Answer : 3. "731"

Q:

In a two-digit number, its units digit exceeds its tens digit by 2 and that the product of the given number and the sum of its digits is equal to 460. The number is:

1063 0

  • 1
    48
    Correct
    Wrong
  • 2
    64
    Correct
    Wrong
  • 3
    46
    Correct
    Wrong
  • 4
    36
    Correct
    Wrong
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Answer : 3. "46"

Q:

Which of the following statements is a false statement?

(A) CRT The monitor is the thinnest monitor.

(B) Dot matrix is the fastest computer.

(C) CAG memory is slower than the main memory.

(D) Bar code reader is an input device.

1059 0

  • 1
    a and b
    Correct
    Wrong
  • 2
    a, b and c
    Correct
    Wrong
  • 3
    c and d
    Correct
    Wrong
  • 4
    a and d
    Correct
    Wrong
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Answer : 2. "a, b and c"
Explanation :

All statements are true.

- CRT The monitor is the thinnest monitor.

- Dot matrix is the fastest computer.

- CAG memory is slower than the main memory.

Q:

The sum of four numbers is 64. If you add 3 to the first number, 3 is subtracted from second number, the third is multiplied by 3 and the sum is divided by 3, then all the results are equal. What is the difference between the largest and the smallest of the original numbers?

1058 0

  • 1
    32
    Correct
    Wrong
  • 2
    27
    Correct
    Wrong
  • 3
    21
    Correct
    Wrong
  • 4
    Cannot be determined
    Correct
    Wrong
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Answer : 1. "32"

Q:

1! + 2! + 3! + 4! + ......... + 50! Find the unit digit of?

1057 0

  • 1
    1
    Correct
    Wrong
  • 2
    3
    Correct
    Wrong
  • 3
    5
    Correct
    Wrong
  • 4
    8
    Correct
    Wrong
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Answer : 2. "3"

Q:

Which of the following is the least 6-digit number that is divisible by 93?

1054 0

  • 1
    100065
    Correct
    Wrong
  • 2
    100070
    Correct
    Wrong
  • 3
    100075
    Correct
    Wrong
  • 4
    100068
    Correct
    Wrong
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Answer : 4. "100068"

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