At what rate percent on simple interest will Rs.750 amount to Rs.900 in 16 years?  Choose the most appropriate option: A) 6.25 % B) 1.25 % C) 4 % D) 5 % E) 3.25 %

Rationale: "150 = ( 750 * 16 * r ) / 100 r = 1.25 % answer : b"
Answer: B