Fill it by the correct answer from the four given options to complete the sequence

In each of the Questions 1 to 6, a sequence of numbers that follow a definite pattern is given. Each question has a blank space. Fill it by the correct answer from the four given options to complete the sequence without breaking the pattern.

  1. 5, 11, 28, 53, _____, 175, 296.
    (1)   89                             (2)   123                    (3)   126                    (4)   152
  2. 7, 6, 11, 13, 15, 20, 19, 27, 23, _____.
    (1)   27                             (2)   34                      (3)   36                      (4)   37
  3. 4, 10, 18, 28, 40, _____, 70, 88.
    (1)   36                             (2)   44                      (3)   54                      (4)   64
  4. 21, _____, 55, 78, 105, 136.
    (1)   36                             (2)   38                      (3)   42                      (4)   45
  5. 3, 7, 13, 21, 31, ____, 57, 73.
    (1)   39                             (2)   43                      (3)   49                      (4)   53
  6. 24, 60, 120, 210, ____, 504, 720.
    (1)   226                           (2)   306                    (3)   336                    (4)   420

 

Anurag Mishra Professor Asked on 20th April 2016 in Maths.
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  • 3 Answer(s)

    3. Answer:  (3) 54

    Solution:-
    4 + 6 = 10, 10 + 8 = 18, 18 + 10 = 28,  28 + 12 = 40,

    Same as,
    40 + 14 = 54

    Hence, the correct answer is option (3) 54.

    5. Answer: (2) 43

    Solution:-
     3 + 4 = 7,  7 + (4 + 2)= 13,
    13 + (6 +2) = 21,
    21 + (8 + 2) = 31,

    Same as,
    31 + (10 + 2) = 43.

    Hence, the correct answer is option (2) 43.

    6. Answer: (3) 336 

    Solution:-
    (3)^3 – 3 = 27 – 3
    = 24,
    (4)^3 – 4 = 64 – 4
    = 60,
    (5)^3 – 5 = 125 – 5
    = 120,
    (6)^3 – 6 = 216 – 6
    = 210,

    Same as,
    (7)^3 – 7 = 343 – 7
    = 336

    Hence, the correct answer is option (3) 336.

     

    Anurag Mishra Professor Answered on 23rd April 2016.
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    Sl.no1.

    2*2+1=5,
    3*3+2=11,
    5*5+3=28,
    7*7+4=53,
    11*11+5=126

    komall Default Answered on 30th April 2016.
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    2)  7,6,11,13,15,20,19,27,23,34
    two series
    7,11,15,19,23—-,6,13,20,27,34—

    kkishore Default Answered on 2nd June 2016.
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