A book is sold for Rs. 575 the amount of profit is equal to the amount of loss if it is sold for Rs. 385, the cost price for this book is

Given,

Selling price of book = Rs. 575

Let cost price of book be Rs.a.

⇒ Profit = 575 - a

Given,

Selling price of book = Rs. 385

⇒ Loss = a - 385

Then,

⇒ 575 - a = a - 385

⇒ 2a = 960

⇒ a = 480

∴ cost price of a book is Rs. 480

C.P = $<!--[if gte msEquation 12]>$$X+Y$2$<![endif]--><!--[if !msEquation]--><!--[if gte vml 1]>

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<!--[endif]-->$<!--[endif]--> = $<!--[if gte msEquation 12]>$$575+385$2$<![endif]--><!--[if !msEquation]--><!--[if gte vml 1]>

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<!--[endif]-->$<!--[endif]--> = Rs. 480 Ans.$

C.P = (X+Y)/2 = (575+385)/2 = Rs.480 Ans$