A sum of Rs. 12,500 amounts to Rs. 15,500 in 4 years at the rate of simple interest. what is the rate of interest ?	Pick:
A) 3 %	B) 4 %	C) 5 %	D) 6 %	E) 7 %

Rationale: s . i . = rs . ( 15500 - 12500 ) = rs . 3000 . rate = ( 100 x 3000 ) / ( 12500 x 4 ) % = 6 % answer : d
Answer: D