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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4 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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6)
ans::  2*3*4=24
3*4*5=60
4*5*6=120
5*6*7=210
6*7*8=336…….so on

Ram Default Answered on 12th December 2016.
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