Question

By selling a book for ₹516, a bookseller grains 20%. For how much should he sell it to gain 30%.​

Answer 1

Answer:

kindly see the answer below...

Step-by-step explanation:

Let,

$the \: cost \: price \: of \: the \: book \: be \: x$

then,

$x \times \frac{120}{100} = 516$

$or \: x = 516 \times \frac{100}{120}$

$or \: x = 430 \: rupees$

therefore, to gain 30%

$x \times \frac{130}{100}$

$= 430 \times \frac{130}{100}$

$= 559 \: rupees$

$so \: the \: book \: seller \: sell \: the \: book \: in$

$559 \: rupees \: to \: gain \: 30\%$

this is the required answer...

thanks a lot...