Number system Practice Question and Answer

Q:

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

702 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:

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?

701 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:

The product of the zeroes of the quadratic polynomial x2+7x+ 10 is

698 0

  • 1
    12
    Correct
    Wrong
  • 2
    10
    Correct
    Wrong
  • 3
    32
    Correct
    Wrong
  • 4
    42
    Correct
    Wrong
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Answer : 2. "10"

Q:

A divisor is 15 times the quotient and 3 times the remainder. If the remainder is 40, find the dividend.

695 0

  • 1
    900
    Correct
    Wrong
  • 2
    750
    Correct
    Wrong
  • 3
    1000
    Correct
    Wrong
  • 4
    600
    Correct
    Wrong
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Answer : 3. "1000"

Q:

Which of the following options has the greatest value?

694 0

  • 1
    (−99)+(−44)−12
    Correct
    Wrong
  • 2
    20+4+(−8)−2+3+6
    Correct
    Wrong
  • 3
    (−18)−45+(−3−2)
    Correct
    Wrong
  • 4
    (−22)+(−4−7)
    Correct
    Wrong
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Answer : 2. "20+4+(−8)−2+3+6"

Q:

The cube of 997 is

688 0

  • 1
    991026973
    Correct
    Wrong
  • 2
    991029673
    Correct
    Wrong
  • 3
    991029773
    Correct
    Wrong
  • 4
    991027273
    Correct
    Wrong
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Answer : 1. "991026973"
Explanation :

Q:

The difference between a number and the square root of the number is 2. The number is:

668 0

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

Q:

(49)15 – 1 is exactly divisible by: 

668 0

  • 1
    29
    Correct
    Wrong
  • 2
    8
    Correct
    Wrong
  • 3
    50
    Correct
    Wrong
  • 4
    51
    Correct
    Wrong
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Answer : 2. "8"
Explanation :

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