Question

An article bought for Rs.450 is sold at profit of 30%, what is the selling price.​

Answer 1

CP=450

SP=30% of CP+CP

=450+135

=585

So, the selling price of an article is Rs.585

Answer 2

First Method

Let the CP of artical be 100

Profit=30%

Therefore, SP=130

Applying unitary method

For CP of Rs. 100, SP = 130

For CP of Rs. 1, SP= 130/100=13/10

For CP of Rs. 450, SP= 450×13/10=585

Therefore, SP= Rs. 585

Second Method

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Let the SP be x

CP= Rs. 450

Profit= 30%

SP=CP+Profit

x=450+450×30%

x=450+450×30/100

x=450+135

x=585

Therefore, SP= Rs. 585