Find the greatest number that will divide 54, 87 and 172 so as to leave the same remainder in each case	Options
A) 13	B) 3	C) 15	D) 1	E) 2

Rationale: explanation : required number = ( 87 - 54 ) , ( 172 - 87 ) , ( 172 - 54 ) = h . c . f of 33,85 and 118 is 1 answer : option d
Answer: D