The greatest number which on dividing 1657 and 2037 leaves remainders 10 and 7 respectively, is:
Answers.
A) 123	B) 1	C) 235	D) 305	E) 505

Rationale: "explanation : required number = h . c . f . of ( 1657 - 10 ) and ( 2037 - 7 ) = h . c . f . of 1647 and 2030 = 1 . answer : b"
Answer: B