Question

By selling a transistor for Rs $572$, a shopkeeper earns a profit equivalent to $30$% of the cost price of the transistor. What is the cost price of the transistor?

• A. Rs $340$
• B. Rs $390$
• C. Rs $440$
• D. Rs $490$

Answer 1

The correct option is C Rs $440$

$\Rightarrow$ Selling price of Transistor is Rs. $572.$

$\Rightarrow$ Profit on transistor is $30\%$.

$\Rightarrow$ $C.P.=\frac{100}{100+Profit\%}\times S.P.$

$\therefore$ $C.P.=\frac{100}{100+30}\times 572=$Rs. $440.$

$\therefore$ Cost price of transistor is Rs. $440.$