Choose the number pair/group which is different from others? Pick:
A) 8 : 39	B) 8 : 38	C) 8 : 33	D) 8 : 32	E) 8 : 31

Rationale: explanation : in all other pairs , 2 nd number = ( 1 st number × 3 ) + 1 . answer : c ) 8 : 33
Answer: C