2 .A shop keeper allows 20% off on the marked price of goods and still

1.	2 .A shop keeper allows 20% off on the marked price of goods and still gets a profit of 25%.What is the actual cost to him of an article marked Rs.500.
Answer» <P>Step-by-step explanation: D% = 20 P% = 25 MP = 500 $$\rule{200}{4}$$ we know that, $$\begin{lgathered}sp = \frac{mp \times(100 - d\%) }{100} \\ \\ sp = \frac{500 \times 80}{100} \\ \\ sp = 400\end{lgathered}$$ Now, $$\begin{lgathered}CP = \frac{sp \times 100}{(100 + p\%)} \\ \\ cp = \frac{400 \times 100}{125} \\ \\ cp = 320\end{lgathered}$$

2 .A shop keeper allows 20% off on the marked price of goods and still gets a profit of 25%.What is the actual cost to him of an article marked Rs.500.

Answer»

<P>Step-by-step explanation:

D% = 20

P% = 25

MP = 500

$$\rule{200}{4}$$

we know that,

$$\begin{lgathered}sp = \frac{mp \times(100 - d\%) }{100} \\ \\ sp = \frac{500 \times 80}{100} \\ \\ sp = 400\end{lgathered}$$

Now,

$$\begin{lgathered}CP = \frac{sp \times 100}{(100 + p\%)} \\ \\ cp = \frac{400 \times 100}{125} \\ \\ cp = 320\end{lgathered}$$