Question

solve the question as brainliest
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Answer 1

C.P. of one item = Rs. 450, C.P. of three items = 3 x Rs. 450 = Rs.1350

Gain on the whole transaction = 20%

∴ S.P. of the three items :-

$\frac{1350 \times 120}{100}$

=Rs.1620

C.P. of 1 item = Rs. 450, Loss = 10%

∴ S.P. of that item =

$\frac{450 \times 90}{100} = 405$

∴ S.P. of the remaining two items = Rs.1620-Rs.405=Rs.1215

C.P. of these two remaining items =2×Rs.450=Rs.900

∴ Gain on these two items = Rs.315

Gain % =

$\frac{315}{900} \times 100 = 35\%$

Answer 2

Answer:

CP = ( SP * 100 ) / ( 100 + percentage profit).

Selling Price: (S.P.) Selling Price: (S.P.) x C.P. Cost Price: (C.P.)

Calculate Selling Price Per Unit

Use the selling price formula to find out the final price i.e.: SP = CP + Profit Margin.