Find the simple interest on Rs. 71,200 at 16 2/3% per annum for 9 months.  Choose the correct option.
A) s . 8500	B) s . 8900	C) s . 7500	D) s . 7000	E) s . 6500

Rationale: "p = rs . 71200 , r = 50 / 3 % p . a and t = 9 / 12 years = 3 / 4 years . s . i . = ( p * r * t ) / 100 = rs . ( 71,200 * ( 50 / 3 ) * ( 3 / 4 ) * ( 1 / 100 ) ) = rs . 8900 answer is b ."
Answer: B