Question

A dealer earns a profit of 12% after selling a book at 10% discount on the printed price. find the ratio of the C.P and the printed price of the book.​

Answer 1

Answer:

Profit = 12%

Discount = 10%

Let think the dealer sold the book in 900 rupees

It means that 900 rupees is equal to 90% of printed price because he Gave 10 % discount on the book

So 90 % is equal to 900 then 100 % is

90 % = 900

1 % = 900 ÷ 90

1 % = 10

100 % = 10 × 100

100 % = 1000

So the printed price is 1000 rupees

Now we calculate the cost price of the book

So the dealer was earns 12 % profit on the book and we think that the 900 rupees is selling price of the book

It means that 900 rupees is equal to 112 % of the cost price of book

Because 100 % is cost price + 12 % profit on it

Then 112 % is equal to 900 rupees then 100% is??

112 % = 900

1 % = 8.03

100 % = 8.03 × 100

100 % = 803

Now the ratio between cost price and printed price

Cost price : printed price = 803 : 1000

Cost price : printed price = 12 : 45

hope this helps you

Answer 2

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