115. A shopkeeper sells an article at15% gain. Had he sold it for : 18

1.	115. A shopkeeper sells an article at15% gain. Had he sold it for : 18more, he would have gained 18%.The cost price (in ?) of the article is(A) 540(C) 600(B) 318(D) 350
Answer» Let Cost price of article be CP Then selling price of articleSP = CP(1 + 15/100) As per given conditionCP(1 + 15/100) + 18= CP(1 + 18/100) CP(18/100 - 15/100) = 18CP(3/100) = 18CP = 1800/3CP = 600 Therefore cost price of article is Rs 600 (C) is correct option

115. A shopkeeper sells an article at15% gain. Had he sold it for : 18more, he would have gained 18%.The cost price (in ?) of the article is(A) 540(C) 600(B) 318(D) 350

Answer»

Let Cost price of article be CP

Then selling price of articleSP = CP(1 + 15/100)

As per given conditionCP(1 + 15/100) + 18= CP(1 + 18/100)

CP(18/100 - 15/100) = 18CP(3/100) = 18CP = 1800/3CP = 600

Therefore cost price of article is Rs 600