Question

11. Pens are bought at 12 for a rupee and sold at 9 for a rupee. Find the gain or loss%.​

Answer 1

Answer:

loss of 3 rupees follow me please

Answer 2

Step-by-step explanation:

$\huge\bf\star\fbox\red{Answer:-}$

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$\Large\bf\star\fbox\green{Solution:-}$

$\leadsto$ $\large\bf\star\fbox\purple{The\ answer\ is}$ = 33.33%

$\Large\bf\star\fbox\green{Explanation:-}$

$\leadsto$ $Pens\ are\ bought\ at\ 12\ for\ a\ rupee\ sold\ at\ 9\ for\ a\ rupee.\ Find\ the\ gain\ or\ loss\ %$

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$\leadsto$ $\mathtt{Pens\ are\ bought\ of\ 12\ for\ a\ rupee}$

$\leadsto$ $\mathtt{Cost\ price\ (c.p)\ of\ the\ 12\ pens\ =\ Rs.1}$

$\leadsto$ $\mathtt{Cost\ price\ (c.p)\ of\ 1\ pen\ =\ Rs.\ \dfrac{1}{12}}$

$\leadsto$ $\mathtt{Now,}$

$\leadsto$ $\mathtt{Selling\ price\ (s.p)\ of\ 9\ pens\ =\ Rs.1}$

$\leadsto$ $\mathtt{Selling\ price\ (s.p)\ of\ 1\ pen\ =\ \dfrac{1}{9}}$

$\leadsto$ $\mathtt{Gain\ =\ s.p\ -\ c.p}$

$\leadsto$ $\mathtt{=\ Rs.\ \dfrac{1}{9} - \dfrac{1}{12}}$

$\leadsto$ $\mathtt{=\ Rs.\ \dfrac{4 - 3}{36}}$ = $\mathtt{Rs.\ \dfrac{1}{36}}$

$\leadsto$ $Gain% =$ $\mathtt{\dfrac{Gain}{c.p} × 100}$ $\mathtt{\cfrac{1}{36} \cfrac{1}{12} × 100}$ = $\mathtt{\dfrac{12}{36} × 100}$

$\leadsto$ $\mathtt{\dfrac{100}{3}}$

$\leadsto$ $33.33%$

$\leadsto$ $\bf\star\fbox\purple{Hence,\ it\ is\ the\ required\ answer}$

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$\large\bf\star\fbox\red{That's\ all}\star$

$\large\bf\star\fbox\purple{Hope\ it\ helps\ you}\star$