Question

If a book purchase in ₹150 and sell it ₹180 Then ,profit percentage is​

Answer 1

Answer:

Answer:20%

Step-by-step explanation:

Purchase price or Cost price(C.P)= 150 rs

Selling price(S.P)= 180 rs

Profit(in rs)= SP-CP 180-150 = 30 rs

Profit%= Profit/C.P x 100

=> Profit%= 30/150x100

=20%

Step-by-step explanation:

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Answer 2

Answer:

Let the cost price be Rs. 100x

20% profit means selling price is Rs. 120x.

New cost price = Rs. (100x+50)

New selling price = Rs. (120x+30)

New profit =(120x+30)−(100x+50)= Rs. 20x−20

20% less

3

10

% =

3

50

%

⇒

100x+50

20x−20

=

100

3

50

=

6

1

On cross multiplying, we have

120x−120=100x+50

⇒20x=170

⇒x=8.5

Therefore, cost price is Rs. 850.

Step-by-step explanation:

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