Question

$\text{A cellphone was marked at}40\%\text{above the cost price and a discount of}30\%\text{was given on its marked price.Find the gain or loss per cent made by the shopkeeper.}$

Answer 1

$\text{Let C.P. of phone =Rs.100}\therefore \text{Marked price}=Rs.100+40=Rs.140\text{Rate of discount}=30\%\therefore \text{S.P. of phone}=\frac{M.P(100-discount\%)}{100}Rs.=\frac{140\times (100-30)}{100}=Rs.\frac{140\times 70}{100}=Rs.98Loss=C.P.-S.P=Rs.100-Rs.98=Rs.2Loss\%=\frac{loss\times 100}{C.P}=\frac{2\times 100}{100}=2\%Ans$