Given that the SP of a book =Rs.230

Profit%=15

Since

CP=(SP×100)÷(100+profit %)

CP=(230×100)÷(100+15)

CP=23000÷115=Rs.200

Also,

Profit=SP−CP=Rs.(230−200)=Rs.30

Actual profit=Rs.30

C.P.=Rs200,Profit=Rs30

Step-by-step explanation:

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Answer:

C.P. = (S.P. * 100) / (100 + Profit%)

Given:

S.P. (Selling Price) = Rs 230

Profit% = 15%

Let's calculate the C.P. and actual profit:

C.P. = (230 * 100) / (100 + 15)

C.P. = (23000) / (115)

C.P. = Rs 200

To calculate the actual profit:

Profit = S.P. - C.P.

Profit = 230 - 200

Profit = Rs 30