In given series 7 8 16 46 107 232 448 only one number is incorrect. Find out that wrong number.
A: 8 B: 16 C: 46 D: 107 E: 232

• 46 is wrong term.
  
  it should be 43.
  
  (N+1)th term = Nth term +(N)^3
  8=7+1^3
  16=8+2^3
  43= 16+3^3............. so 46 is wrong.
  107= 43+4^3
  232= 107+5^3
  448= 232+6^3
• 11 years agoHelpfull: Yes(13) No(3)
• c)
  from reverse side
  448-232=216=6^3
  232-107=5^3
  107-46 is not equal to 4^3. so 46 is wrong.
  correct term: 43
• 11 years agoHelpfull: Yes(1) No(3)