Question

The marked price of a radio was $Rs2400$ . It was sold after a discount of 20$\%$ . If the percentage of profit was $20\%,$ then find its cost price (in Rs ).

Answer 1

$M.P=Rs.2400$

$Discount=20\%$

So, $S.P=2400-\frac{20\times 2400}{100}=Rs.1920$

Since, $Profit=20\%$

Therefore,

$Profit\left(\%\right)=\frac{S.P-C.P}{C.P}\times 100$

$20=\frac{1920-C.P}{C.P}\times 100$

$20C.P=(1920-C.P)\times 100$

$C.P=Rs.1600$

Hence, this is the answer.