The difference between simple and compound interest on Rs. 1400 for one year at 10% per annum reckoned half-yearly is? Pick one:	A) 8.25	B) 3.5	C) 9.0	D) 3.15	E) 2.0

Rationale: "s . i . = ( 1400 * 10 * 1 ) / 100 = rs . 140 c . i . = [ 1400 * ( 1 + 5 / 100 ) 2 - 1400 ] = rs . 143.5 difference = ( 143.5 - 140 ) = rs . 3.50 answer : b"
Answer: B