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What will come at the place of question mark 6 11...

This question belongs to Competitive Reasoning Number Series Completion
Number Series Completion
?

What will come at the place of question mark ?
6, 11, 21, 36, 56, ?

Answer & Solution
Correct Answer: Option C

6 (+5)→ 11 (+10)→ 21 (+15)→ 36 (+20)→ 56 (+25) → 81.

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4 Comments
Vani.k Vani.k
Vani.k Vani.k 5 years ago
Amazing
Laxman Hugar
Laxman Hugar 6 years ago
Tq so much sir
Tsega Negussie
Tsega Negussie 6 years ago
6 (+5)→ 11 (+10)→ 21 (+15)→ 36 (+20)→ 56 (+25) → 81, what about 25 , how do you get it?
Ing. Brown
Ing. Brown 6 years ago
alternate solution by Ing. Justice Brown gh
6, 11, 21, 36, 56, ?
11 - 6 =5
21 - 11 =10
36 - 21 =15
56 - 36 = 20
this means that at next level 5 is added to the difference
so the next number will be 56 + 25 = 81
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