A vendor bought toffees at 6 for a rupee. How | vedclass

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Question

$CP$ of $6$ toffees $=$ $Rs.$ $1, \quad$ $CP$ of $1$ toffee $=$ $Rs.$ $\frac{1}{6}$

$SP$ of $x$ toffees $=$ $Rs.$ $1 \quad$ (where $x$ is no. of to

Vedclass · Accepted Answer

$5$

Vedclass · Answer

$CP$ of $6$ toffees $=$ $Rs.$ $1, \quad$ $CP$ of $1$ toffee $=$ $Rs.$ $\frac{1}{6}$

$SP$ of $x$ toffees $=$ $Rs.$ $1 \quad$ (where $x$ is no. of toffees to sell)

$SP$ of $1$ toffee $=$ $Rs.$ $\frac{1}{x}$

$\operatorname{Gain} \%=\frac{20}{100}=\frac{\frac{1}{x}-\frac{1}{6}}{\frac{1}{6}} \Rightarrow \frac{1}{5} 	imes \frac{1}{6}=\frac{1}{x}-\frac{1}{6} \Rightarrow x=5$

A vendor bought toffees at $6$ for a rupee. How many for a rupee must he sell to gain $20 \% ?$

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