# I did not understand this answer how did it come can anyone please help me! Which number will complete the series? 6, 11, 21, 36, 56, (a) 51 (b) 91 (c) 42 (d) 81 Answer : (d) Reason : The sequence is +5, +10, +15, +20, +25.

2
by kOyAl

2015-12-26T11:35:59+05:30

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Listen already given values 6, 11, 21, 36, 56,..

and reason also given just solve it by adding
,.

example :- 6 + 5 = 11

11 + 10 = 21

21 + 15 = 36

36 + 20 = 56

56 + 25 = 81

soo at last answer is 81 .

hope its help u

Thank you @prince
it's my pleasure :))
2015-12-26T14:32:01+05:30

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Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
The reason is given so it can be solved easily, these question come in many competitive exams.
sequence is +5, +10, +15, +20, +25
so 6+ 5= 11  ,, 11+10= 21   ,, 21+15= 36  ,, 39+20 = 56   and so 56+25 = 81
so the answer is d) 81