In the following question a series is given and it is followed by the starting point of another series. After this, a question is given, you have to complete the second series by applying the same logic as in the first given series, and then you have to answer the question.
5, 8, 12, 17, 23, 30,.....
9, a, b, c, d, e,.....
Which number should come in place of c?

• c=21
  
  1st series
  5+3 =8
  8+4=12
  12+5=17
  17+6=23
  23+7=30
  
  2nd series
  9+3=12(a)
  12+4=16(b)
  16+5=21(c)
  c=21
• 10 years agoHelpfull: Yes(0) No(0)
• c=21....because..the logic in first series is...add..3,4,5,6,7 in the first series like.5+3=8
  8+4=12
  12+5=17
  17+6=23
  23+7=30;
  
  
  like that second series is=9,12,16,21,27,34
  
• 10 years agoHelpfull: Yes(0) No(0)