What will be the difference between simple and compound interest at 14% per annum on a sum of Rs. 1000 after 4 years?	Choose the most appropriate option:  A) 129  B) 130  C) 124  D) 133  E) 145

Rationale: "s . i . = ( 1000 * 14 * 4 ) / 100 = rs . 560 c . i . = [ 1000 * ( 1 + 14 / 100 ) 4 - 1000 ] = rs . 689 difference = ( 689 - 560 ) = rs . 129 answer : a"
Answer: A