Question

Carol bought a mattress for Rs 5750 and sold it for Rs 6440 Find gain per cent earned by her.​

Answer 1

Here ,

• Cost price of the mattress = ₹ 5750
• Selling price of the mattress = ₹6440

We know that ,

$\leadsto \boxed{\tt{★ Gain \:percentage} = \color{red} \bold{\frac{selling \: price \: - cost \: price}{selling \: price} \times 100}}$

$\leadsto \: \ \tt{Gain \:percentage} = \color{blue} \bold{\frac{6440 \: - 5750}{6440} \times 100}$

$\leadsto \: \ \tt{Gain \:percentage} = \color{blue} \bold{\frac{690}{6440} \times 100}$

$\leadsto \: \ \tt{Gain \:percentage} = \color{blue} \bold{0.1071 \times 100}$

$\leadsto \: \underbrace {\tt{Gain \:percentage} = \color{green} \bold{10.71\%}}$