Find the greatest number which on dividing 1661 and 2045, leaves a reminder of 10 and 13 respectively Choose the correct choice.
A) 125	B) 127	C) 129	D) 131	E) 150

Rationale: explanation : in this type of question , its obvious we need to calculate the hcf , trick is hcf of ( 1661 - 10 ) and ( 2045 - 13 ) = hcf ( 1651 , 2032 ) = 127 option b
Answer: B