Find the greatest number which on dividing 1657 and 2037 leaves remainders 6 and 5 respectively.
Choose one:
A) 121
B) 124
C) 127
D) 122
E) 129

Rationale: "required number = h . c . f . of ( 1657 - 6 ) and ( 2037 - 5 ) = h . c . f . of 1651 and 2032 _______ 1651 ) 2032 ( 1 1651 1651 _______ 381 ) 1651 ( 4 1524 _________ 127 ) 381 ( 3 381 0 required number = 127 . answer is c ."
Answer: C