Find out the wrong number in the series.
15, 16, 34, 105, 424, 2124, 12576

A. 16 B. 34
C. 105 D. 424
E. 2124

• Option E
  
  Explanation:
  
  2nd term = (1st term) x 1 + 1 = 15 x 1 + 1 = 16.
  
  3rd term = (2nd term) x 2 + 2 = 16 x 2 + 2 = 34.
  
  4th term = (3th term) x 3 + 3 = 34 x 3 + 3 = 105.
  
  5th term = (4th term) x 4 + 4 = 105 x 4 + 4 = 424
  
  6th term = (5th term) x 5 + 5 = 424 x 5 + 5 = 2125
  
  6th term should 2125 instead of 2124.
• 11 years agoHelpfull: Yes(1) No(0)
• ans:2124
  *1+1,*2+2,*3+3,*4+4,*5+5
• 12 years agoHelpfull: Yes(0) No(0)