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
   
   
    


Find the missing numbers:-
6. 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
   
   
    



7. 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
   
   
    



8. 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
   
   
    



9. 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
   
   
    



10. 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