Number system Practice Question and Answer

Q:

A number divided by 13 leaves a remainder 1 and if the quotient, thus obtained, is divided by 5, we get a remainder of 3. What will be the remainder if the number is divided by 65?

1408 0

  • 1
    28
    Correct
    Wrong
  • 2
    16
    Correct
    Wrong
  • 3
    18
    Correct
    Wrong
  • 4
    40
    Correct
    Wrong
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Answer : 4. "40"
Explanation :

Let the least number be x

y = 5 × 1 + 3 = 8

x = 13 × 8 + 1 = 105

On dividing 105 by 65, remainder = 40

Q:

The median of 31, 25, 17, 23, 45 and 59 is:

1408 0

  • 1
    23
    Correct
    Wrong
  • 2
    25
    Correct
    Wrong
  • 3
    31
    Correct
    Wrong
  • 4
    28
    Correct
    Wrong
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Answer : 4. "28"

Q:

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

1406 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 fourth root of 24010000 is 

1404 0

  • 1
    7
    Correct
    Wrong
  • 2
    49
    Correct
    Wrong
  • 3
    490
    Correct
    Wrong
  • 4
    70
    Correct
    Wrong
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Answer : 4. "70"

Q:

The smallest number which when divided by 18, 24, 38 and 42 leaves the remainder 15, 21,     35 and 39 respectively is :-

1402 0

  • 1
    6097
    Correct
    Wrong
  • 2
    9573
    Correct
    Wrong
  • 3
    9887
    Correct
    Wrong
  • 4
    2397
    Correct
    Wrong
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Answer : 2. "9573"

Q:

A number when divided by the sum of 555 and 445 gives two times their difference as quotient and 30 as the remainder. The number is: 

1401 0

  • 1
    220030
    Correct
    Wrong
  • 2
    22030
    Correct
    Wrong
  • 3
    1220
    Correct
    Wrong
  • 4
    1250
    Correct
    Wrong
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Answer : 1. "220030 "

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Answer : 4. "None of these"

Q:

How many numbers are there from 500 to 650 (including both) which are neither divisible by 3 nor by 7?

1395 0

  • 1
    21
    Correct
    Wrong
  • 2
    121
    Correct
    Wrong
  • 3
    87
    Correct
    Wrong
  • 4
    99
    Correct
    Wrong
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Answer : 3. "87 "

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