Question

There is 10% profit by selling a book. If the selling price would have been 7 less,
there would have been 4% loss. What is the cost price of the book?
(1) 70 (2) 60 (350 (4) 340​

Answer 1

Answer:

answer is 50

Step-by-step explanation:

because if CP=10%

Then SP with 10% profit= 55

And if 7 rupees Is deducted from it

SP would be 48 where there is loss of 2rs(that is 4%)

Answer 2

Ans

Rs 50

Step-by-step explanation:

Difference in profit = 10 - (-4) = 14%

Difference in price = Rs 7

Find the cost price:

14% = Rs 7

1% = 7 ÷ 14 = Rs 0.50

100% = 0.5 x 100 = Rs 50

Answer: The cost price is Rs 50

Check:

10% profit = 0.1 x 50 = Rs 5

Selling Price = 50 + 5 = Rs 55

4% loss = 0.04 x 50 = Rs 2

Selling Price = 50 - 2 = Rs 48

Difference in price = 55 - 48 = Rs 7