Question

On selling 72 books a man lost the selling price of 8 books .Find his loss percent

Answer 1

Step-by-step explanation:

let each book SP = rs. 1

for 72 books, SP= rs.72

loss=rs. 8

CP=rs . 8

so, loss percentage= (8x100)/80 = 10 percent

Answer 2

His loss % is 10%.

Step-by-step explanation:

Since we have given that

Number of books sold = 72

He lost the selling price of 8 books.

According to question, we get that

$72SP=72CP-8SP\\\\72SP+8SP=72CP\\\\80SP=72CP\\\\\dfrac{SP}{CP}=\dfrac{72}{80}=\dfrac{9}{10}$

So, Loss% would be

$\dfrac{10-9}{10}\times 100\\\\=10\%$

Hence, His loss % is 10%.