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Computer Aptitude Questions Set – 1

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Hello Aspirants.

Welcome to Online Computer Aptitude Quiz Section based on New Pattern in AffairsCloud.com. Here we are creating quiz based on Number System conversion for SBI/IBPS Exams.

  1. Convert the given Decimal number into Binary form – 175
    1.100011112
    2.111110102
    3.111010112
    4.101011112
    5.None of these
    Answer – 4.101011112
    Explanation :
    Divide the number by Short division with 2 then note down the remainder one by one. Then write it down from LSB(Least significant bit ) to MSB(Most significant bit )
    175/2 = Remainder 1
    87/2 = Remainder 1
    43/2 = Remainder 1
    21/2 = Remainder 1
    10/2 = Remainder 0
    5/2 = Remainder 1
    2/2 = Remainder 0
    1/2= Remainder 1
    17510 = 101011112

  2. Convert the given Binary number into Decimal form – 1001112
    1.39
    2.71
    3.27
    4.16
    5.None of these
    Answer – 1.39
    Explanation :
    1001112
    25+ 0+ 0+ 22+ 21+ 20
    32+0+0+4+2+1 = 39

  3. Convert the given Decimal number into Octal form  – 125
    1.1408
    2.1758
    3.1258
    4.1208
    5.None of these
    Answer – 2.1758
    Explanation :
    125/8 = Remainder = 5
    15/8 = Remainder = 7
    1

  4. Convert the given Base 10 into Base 16 – 210
    1.2D16
    2.21316
    3.D216
    4.13216
    5.None of these
    Answer – 3.D216
    Explanation :
    210/16 = Remainder 2
    13 =>D(A=10, B=11, C=12, D=13)

  5. Convert the given Binary number into Octal number 1100110
    1.1608
    2.1648
    3.1408
    4.1468
    5.None of these
    Answer – 4. 1468
    Explanation :
    001 /100 /110
    1/4/6
    1100110 = 1468

  6. Convert the given Binary number into Hexadecimal Number 1100110
    1.4416
    2.8816
    3.2216
    4.6616
    5.None of these
    Answer – 4.6616
    Explanation :
    0110/0110
    6/6 = 66

  7. What will be the one’s complement of decimal number 33 ?
    1.110011
    2.100001
    3.011110
    4.001101
    5.None of these
    Answer – 3.011110
    Explanation :
    100001=32+0+0+0+0+1 =33
    100001 => 011110

  8. What will be the one’s complement of 0100102 ?
    1.101111
    2.101101
    3.100100
    4.110101
    5.None of these
    Answer – 2.101101
    Explanation :
    Just replace 0 by 1 & 1 by 0
    010010 = 101101

  9. Find the 2’s complement of 0100102?
    1.100100
    2.101101
    3.101100
    4.101110
    5.None of these
    Answer – 4.101110
    Explanation :
    010010 = 101101
    (1+0 or 0+1 =1 and 1+1 =10)
    101101
    1 (+)
    —————-
    101110
    —————-

  10. Convert the given Hexadecimal into Decimal number(Base 10) – CB2
    1.2510
    2.121110
    3.325010
    4.125010
    5.None of these
    Answer – 3.325010
    Explanation :
    CB2 => 12 11 2
    12*162 + 11*161+ 2*160
    3072+176+2 = 325010