A shopkeeper earns a profit of 12- on selling a book 10- discount on the printed price- The ratio of the cost price and the printed price of the book is -50-6145-5699-125None of these

Question

Toppr Admin · Accepted Answer

Let the C-P- is xand the Marked price is yS-P- -0-9yprofit -0-12-0-9y-x2212-xx0-12x-0-9y-x2212-xxy-0-91-12xy-4556

A shopkeeper earns a profit of $12 %$ on selling a book at $10 %$ discount on the printed price. The ratio of the cost price and the printed price of the book is ___________.
$50 : 61$
$45 : 56$
$99 : 125$
None of these

let the C.P. is $x$
and the Marked price is $y$
S.P. $= 0.9 y$
profit $= 0.12 = \frac{0.9 y - x}{x}$
$0.12 x = 0.9 y - x$

$\frac{x}{y} = \frac{0.9}{1.12}$

$\frac{x}{y} = \frac{45}{56}$

A shopkeeper earns a profit of 12% on selling a book at 10% discount on the printed price. The ratio of the cost price and the printed price of the book is ___________.50:6145:5699:125None of these

let the C.P. is xand the Marked price is yS.P. =0.9yprofit =0.12=0.9y−xx0.12x=0.9y−xxy=0.91.12xy=4556

A shopkeeper earns a profit of $12 %$ on selling a book at $10 %$ discount on the printed price. The ratio of the cost price and the printed price of the book is ___________.
$50 : 61$
$45 : 56$
$99 : 125$
None of these

let the C.P. is $x$
and the Marked price is $y$
S.P. $= 0.9 y$
profit $= 0.12 = \frac{0.9 y - x}{x}$
$0.12 x = 0.9 y - x$

$\frac{x}{y} = \frac{0.9}{1.12}$

$\frac{x}{y} = \frac{45}{56}$