Quantitative Aptitude: Number Series Set 128

Find the wrong term:-

  1. 13.., 77.., 202.., 418.., 763…, 1273
    763
    13
    77
    202
    418
    Option A
    13 + 43 = 77
    77 + 53 = 202
    202 + 63 = 418
    418 + 73 = 761
    761 + 83 = 1273
    The wrong term is 763

     

  2. 53760…, 6720.., 960.., 160.., 80…, 8
    6720
    960
    160
    80
    8
    Option D
    53760 ÷ 8 = 6720
    6720 ÷ 7 = 960
    960 ÷ 6 = 160
    160 ÷ 5 = 32
    32 ÷ 4 = 8
    The wrong term is 80

     

  3. 80.., 120.., 300.., 1040.., 4725.., 25987.5
    80
    120
    300
    1040
    4725
    Option D
    80 * 1.5 = 120
    120 * 2.5 = 300
    300 * 3.5 = 1050
    1050 * 4.5 = 4725
    4725 * 5.5 = 25987.5
    The wrong term is 1040

     

  4. 325.., 362.., 401.., 442.., 484.., 530
    325
    362
    401
    442
    484
    Option E
    182 + 1 = 325
    192 + 1 = 362
    202 + 1 = 401
    212 + 1 = 442
    222 + 1 = 485
    232 + 1 = 530
    The wrong term is 484

     

  5. 19.., 20.., 45.., 129.., 520.., 2605
    19
    20
    45
    129
    520
    Option C
    19 * 1 + 1 = 20
    20 * 2 + 2 = 42
    42 * 3 + 3 = 129
    129 * 4 + 4 = 520
    520 * 5 + 5 = 2605
    The wrong term is 45

     

  6. Find the missing numbers:-

  7. 56.., 92.., 67.., 83.., 74.., ?
    76
    78
    80
    82
    90
    Option B
    56 + 62=92
    92 – 52 =67
    67 + 42 =83
    83 – 32 =74
    74 + 22 =78

     

  8. 5040.., 840.., 168.., ?.., 14.., 7
    40
    42
    44
    46
    48
    Option B
    5040 ÷ 6=840
    840 ÷ 5=168
    168 ÷ 4=42
    42 ÷ 3=14
    14 ÷ 2=7

     

  9. 240.., 40.., ?.., 50.., 150.., 75
    100
    200
    300
    400
    500
    Option B
    240 ÷ 6 =40
    40 * 5 =200
    200 ÷ 4 =50
    50 * 3 =150
    150 ÷ 2 =75

     

  10. 12.., 6.., 12.., 42.., 210.., ?
    1245
    1365
    1355
    1555
    1755
    Option B
    12 * 0.5=6
    6 * 2 =12
    12 * 3.5=42
    42 * 5=210
    210 * 6.5=1365

     

  11. 71.., 77.., 89.., 109.., 139.., ?
    181
    171
    197
    121
    131
    Option A
    71 + (22 + 2) =77
    77 + (32 + 3) =89
    89 + (42 + 4) =109
    109 + (52 + 5)=139
    139 + (62 + 6)=181

     

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