A shopkeeper fixes the marked price of an item 30% above its cost price. The percentage of discount allowed to gain 6% is  Choose the correct choice from the following answers:
A) 18.45 %	B) 18.46 %	C) 18.47 %	D) 18.48 %	E) none of these

Rationale: "explanation : let the cost price = rs 100 then , marked price = rs 130 required gain = 6 % , so selling price = rs 106 discount = 130 - 106 = 24 discount % = ( 24 / 130 ) * 100 = 18.46 % option b"
Answer: B