Quantitative Aptitude: Number Series Set 155

  1. Directions : What will come in place of questions ( ? ) marks in the following number series ?
    8 , 46 , 80 , 110 , 136 , ?
    168
    158
    208
    425
    384
    Option B
    The series is (+ 38) , (+ 34) , (+ 30) , (+ 26) , (+ 22)

     

  2. 29 , 32 , 61 , 93 , 154 , ?
    285
    160
    247
    240
    320
    Option C
    The series is (29 + 32 = 61) , (32 + 61 = 93) , (61 + 93 = 154) , (93 + 154 = 247)

     

  3. 65 , 83 , 103 , 125 , ? , 175
    128
    165
    143
    149
    120
    Option D
    The series is , + (8^2 + 1) , + (9^2 + 2) , + (10^2 + 3) , + (11^2 + 4) , + (12^2 + 5) , + (13^2 + 6)

     

  4. 12 , 7 , 9 , 16.5 , 37 , ?
    92
    97.5
    45.25
    68.5
    56.75
    Option B
    The series is (*1 + 2) , (*1.5 + 3) , (*2 + 4) , (2.5 + 5)

     

  5. 35 , 36, 40 , 49 , 65 , ?
    92
    105
    75
    90
    84
    Option D
    The series is (+ 1^1) , (+ 2^2) , (+ 3^2) , (+ 4^2) , (+ 5^2)

     

  6. 425 , 408 , 381 , 344 , 297 , ?
    254
    242
    164
    240
    246
    Option D
    The series is (- 17 ) , (- 27) , (- 37) , (- 47) , (- 57)

     

  7. 45 , 52 , 41 , 54 , 37 , ?
    50
    56
    43
    92
    38
    Option B
    The series is (+ 7) , (- 11) , (+ 13) , (- 17) , (+ 19)

     

  8. 3600 , 720 , ? , 60 , 30 , 30
    120
    180
    360
    600
    240
    Option B
    The series is ( 3600 / 5 ) , ( 720 / 4 ) , ( 180 / 3 ) , ( 60 / 2 ) , ( 30 /1 )

     

  9. 4 , 5 , 12 , 39 , 160 , ?
    800
    805
    482
    540
    640
    Option B
    The series is (* 1 + 1) , (* 2 + 2 ) , (* 3 + 3 ) , ( * 4 + 4 ) , ( * 5 + 5 )

     

  10. 24 , 26 , 29 , 28 , 34 , ? , 39
    30
    54
    20
    32
    42
    Option A
    The series is (24 + 5 = 29) , (26 + 2 = 28) , ( 29 + 5 = 39) , (28 + 2 = 30) …

     

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