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  1. If by selling an article for Rs. 390 a shopkeeper gains 20%, then the cost price is
    1. Rs. 370
    2. Rs. 325
    3. Rs. 350
    4. Rs. 300
Correct Option: B

Given , selling price of article = Rs. 390
Let the C.P. of article be Rs. y.
According to the question ,

y ×
120
 = 390
100

⇒ y =
390 ×
100
 = Rs. 325
120

Hence , the cost price is 325 .


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