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6, 7, 9, 12, 13, 15, ?


A) 18

B) 24

C) 36

D) 44

Correct Answer:
A) 18

Description for Correct answer:
6+1=7, 7+2=9, 9+3=12, 12+1=13, 13+2=15, 15+3=18

So 18 will come next to 15.

Part of solved Number series questions and answers : >> Aptitude >> Number series




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