If Sharon's weekly salary increased by 15 percent, she would earn $575per week. If instead, her weekly salary were to decreased by 12 percent, how much would she earn per week? Choose the correct option.
A) rs . 540  B) rs . 580  C) rs . 560  D) rs . 620  E) rs . 650

Rationale: "soln : - ( 575 / 115 ) 112 = 560 in this case long division does not take much time . ( 23 / 5 ) = 4.6 4.6 * 112 = rs . 560 answer : c"
Answer: C