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Aptitude Questions: Number Series Set 43

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Welcome to Online Quantitative Aptitude Section in AffairsCloud.com. Here we are creating question sample in Number Series, which is common for all the competitive exams. We have included Some questions that are repeatedly asked in bank exams !!!

  1. 84, 72, 66, ?, 68.17
    1.65
    2.60
    3.67
    4.76
    5.None of these
    Answer & Explanation
    Answer – 1.65
    Explanation :
    84/1.2 = 70+2 = 72
    72/1.2= 60+6 = 66
    66/1.2 = 55+10 = 65
    65/1.2 = 54.17+14 = 68.17

  2. 110, ?, 42, 20, 6
    1.63
    2.81
    3.72
    4.90
    5.None of these
    Answer & Explanation
    Answer – 3.72
    Explanation :
    112 – 11 = 110
    92 – 9 = 72
    72 – 7 = 42
    52 – 5 = 20
    32 – 3 = 6

  3. 164, 40, ?, 43, 188
    1.224
    2.68
    3.90
    4.176
    5.None of these
    Answer & Explanation
    Answer – 4.176
    Explanation :
    164 -4 = 160/4 = 40
    40+4 = 44*4 = 176
    176-4 = 172/4 = 43
    43+4 = 47*4 = 188
    188-4 = 184/4 = 46

  4. 96, 320, 800, 1600, ?
    1.640
    2.2666.7
    3.2500
    4.2400
    5.None of these
    Answer & Explanation
    Answer – 2.2666.7
    Explanation :
    96/0.3 = 320
    320/0.4 = 800
    800/0.5 = 1600
    1600/0.6 = 2666.7

  5. 434, 418, 393, ?, 308, 244
    1.357
    2.346
    3.325
    4.254
    5.None of these
    Answer & Explanation
    Answer – 1.357
    Explanation :
    434 – 42 = 418
    18 – 52 = 393
    393 – 62 = 357
    357- 72 =308
    308- 82 = 244

  6. 8, 64, ?, 206, 292, 388
    1.412
    2.342
    3.130
    4.224
    5.None of these
    Answer & Explanation
    Answer – 3.130
    Explanation :
    8 + 56 = 64
    64 + 66 = 130
    130+76 = 206
    206+86 = 292
    292+96 = 388

  7. ?, 510, 495, 475, 450, 420
    1.680
    2.480
    3.500
    4.520
    5.None of these
    Answer & Explanation
    Answer – 4.520
    Explanation :
    520-(10*1) = 510
    510 – (10*1.5) = 495
    495 –(10*2) = 475
    475 – (10*2.5) = 450
    450 –(10*3) = 420

  8. 43, 214, 852, ?
    1.2529
    2.1245
    3.3214
    4.2650
    5.None of these
    Answer & Explanation
    Answer – 1.2529
    Explanation :
    43 *5 – 1^1 = 214
    214*4 – 2^2 = 852
    852*3 – 3^3 = 2529

  9. 332, 370, 410, ?, 496
    1.564
    2.452
    3.326
    4.210
    5.None of these
    Answer & Explanation
    Answer – 2.452
    Explanation :
    18^2 = 324 + 8 = 332
    19^2 = 361+9 = 370
    20^2 = 400+10 = 410
    21^2 = 441+11 = 452
    22^2 = 484+12 = 496

  10. 1224, 1134, 954, 684, ?
    1.324
    2.416
    3.560
    4.214
    5.None of these
    Answer & Explanation
    Answer – 1.324
    Explanation :
    1224 – 90 = 1134
    1134 – 180 = 954
    954 – 270 = 684
    684 – 360 = 324





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