The difference between simple and compound interest on Rs. 1300 for one year at 10% per annum reckoned half-yearly is?	Choose the correct option
A) 8.0 B) 3.25 C) 9.15 D) 3.13 E) 2.0

Rationale: s . i . = ( 1300 * 10 * 1 ) / 100 = rs . 130 c . i . = [ 1300 * ( 1 + 5 / 100 ) 2 - 1300 ] = rs . 133.25 difference = ( 133.25 - 130 ) = rs . 3.25 answer : b
Answer: B