The greatest number which on dividing 1657 and 2037 leaves remainders 9 and 5 respectively, is:  Choose the correct choice from the following answers
A) 16  B) 127  C) 235  D) 305  E) 505

Rationale: "explanation : required number = h . c . f . of ( 1657 - 9 ) and ( 2037 - 5 ) = h . c . f . of 1648 and 2032 = 16 . answer : a"
Answer: A