Number System Questions Practice Question and Answer

Q:

Let x be the greatest number which when divides 955, 1027, 1075, the remainder in each case is the same. Which of the following is NOT a factor of x?

406 0

  • 1
    4
    Correct
    Wrong
  • 2
    16
    Correct
    Wrong
  • 3
    8
    Correct
    Wrong
  • 4
    6
    Correct
    Wrong
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Answer : 2. "16"

Q:

When 1062, 1134 and 1182 are divided by the greatest number .x, the remainder in each case is y. What is the value of (x − y)?

405 0

  • 1
    17
    Correct
    Wrong
  • 2
    18
    Correct
    Wrong
  • 3
    16
    Correct
    Wrong
  • 4
    19
    Correct
    Wrong
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Answer : 2. "18"
Explanation :

The value of (x-y) will be 18

Q:

Find the average of the cubes of the first five natural numbers. 

403 0

  • 1
    35
    Correct
    Wrong
  • 2
    40
    Correct
    Wrong
  • 3
    45
    Correct
    Wrong
  • 4
    50
    Correct
    Wrong
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Answer : 3. "45 "

Q:

A number when divided by 899 gives a remainder 63. If the same number is divided by 29, the remainder will be

396 0

  • 1
    10
    Correct
    Wrong
  • 2
    5
    Correct
    Wrong
  • 3
    4
    Correct
    Wrong
  • 4
    2
    Correct
    Wrong
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Answer : 2. "5"
Explanation :

Solution: $${Remainder\over 29}={7\over 9}$$

=> remainder (शेषफल)=5

Q:

A number when divided by 6 leaves remainder 3. When the square of the same number is divided by 6, the remainder is : 

386 0

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

The remainder will be same.

On dividing 9 by 6, remainder = 3

On dividing 81 by 6, remainder = 3

Q:

In a proportion, the 1st , 2nd and 4th  terms are 51, 68 and 108, respectively. What is the 3rd term?

381 0

  • 1
    82
    Correct
    Wrong
  • 2
    81
    Correct
    Wrong
  • 3
    83
    Correct
    Wrong
  • 4
    84
    Correct
    Wrong
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Answer : 2. "81"

Q:

Direction: What value will come in place of the question mark (?) in the following question?

32, 50, 86, ?, 212, 302

380 0

  • 1
    168
    Correct
    Wrong
  • 2
    126
    Correct
    Wrong
  • 3
    140
    Correct
    Wrong
  • 4
    158
    Correct
    Wrong
  • 5
    160
    Correct
    Wrong
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Answer : 3. "140"

Q:

If $$x+{16\over x}=8$$, then the value of $$x^2+{32\over x^2}$$ is:

378 0

  • 1
    20
    Correct
    Wrong
  • 2
    24
    Correct
    Wrong
  • 3
    16
    Correct
    Wrong
  • 4
    18
    Correct
    Wrong
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Answer : 4. "18"

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