Number System Questions Practice Question and Answer

Q:

1, 3, 5, 7, ………total average of 25th number  is:

1045 0

  • 1
    125
    Correct
    Wrong
  • 2
    25
    Correct
    Wrong
  • 3
    625
    Correct
    Wrong
  • 4
    50
    Correct
    Wrong
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Answer : 2. "25"

Q:

Of the three numbers, the second is twice the first and it is also thrice the third. If the average of three numbers is 44, the difference of the first number and the third numbers is: 

911 0

  • 1
    24
    Correct
    Wrong
  • 2
    18
    Correct
    Wrong
  • 3
    12
    Correct
    Wrong
  • 4
    6
    Correct
    Wrong
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Answer : 3. "12 "

Q:

The students of a class donated Rs. 3, 481 towards relief fund. Each student donated an amount qual to the number of students in the class. The number of students in the class is: 

1010 0

  • 1
    49
    Correct
    Wrong
  • 2
    51
    Correct
    Wrong
  • 3
    59
    Correct
    Wrong
  • 4
    61
    Correct
    Wrong
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Answer : 3. "59 "

Q:

The number 45789 is divisible by which of the single digit number: 

1452 0

  • 1
    Only by 3
    Correct
    Wrong
  • 2
    Only by 9
    Correct
    Wrong
  • 3
    Only by 3 and 7
    Correct
    Wrong
  • 4
    Only by 3 and 9
    Correct
    Wrong
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Answer : 1. "Only by 3 "

Q:

What is the largest four digit number which is also complete?

918 0

  • 1
    9999
    Correct
    Wrong
  • 2
    9909
    Correct
    Wrong
  • 3
    9801
    Correct
    Wrong
  • 4
    9081
    Correct
    Wrong
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Answer : 3. "9801"

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: 

964 0

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

Q:

The numerator of a fraction is multiple of two numbers. One of the numbers is greater than the other by 2. The greater number is smaller than the denominator by 4. If the denominator 7 + C ( C > - 7 ) is a constant, then the minimum value of the fraction is :

1579 0

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

Q:

Each member of a club contributes as much rupees and as much praise as the number of members of the club. If the total contribution is ₹2525, then the number of members of the club is:

1437 0

  • 1
    60
    Correct
    Wrong
  • 2
    45
    Correct
    Wrong
  • 3
    55
    Correct
    Wrong
  • 4
    50
    Correct
    Wrong
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Answer : 4. "50 "

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