If n is an even integer ,which of the following must be an odd integer

a.3n-2
b.3(n+1)
c.n-2
d.n/3

• taking eg : even integer as 6
  
  3n-2=3*6-2=16
  3(n+1)=3(6+1)=21
  n-2= 6-2 = 4
  n/3=6/3=2
  
  so option b is correct
• 9 years agoHelpfull: Yes(0) No(0)
• let n=2k
  now 3(n+1)=3(2k+1)=(odd)(odd)=odd
• 7 years agoHelpfull: Yes(0) No(0)