Question

Cost price of 16 books is equal to the selling price of 20 books the loss percentage is

Answer 1

Answer:

20%

Step-by-step explanation:

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Answer 2

Answer:

The loss percentage is 20%.

Step-by-step explanation:

Given, cost price of 16 books is equal to the selling price of 20 books.

Let cost price of 16 books be x rupees.

So, cost price of 1 book is $\frac{x}{16} \: rupees$

Again, selling price of 20 books is x rupees.

So, selling price of 20 books is $\frac{x}{20} \: rupees$

Here selling price is less than cost price.

So, loss = Cost price - selling price

$= \frac{x}{16} - \frac{x}{20} \\ = \frac{5x - 4x}{80} \\ = \frac{x}{80} \: rupees$

We know, cost price means 100%

$\frac{x}{16} \: rupees$ means 100%

1 rupees means $\frac{100}{ \frac{x}{16} } \: rupees$

$\frac{x}{80}$ rupees means

$\frac{100 \times \frac{x}{80} }{ \frac{x}{16} } \\ = \frac{100 \times 16}{80} \\ = 20\%$

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