### A shopkeeper marks his goods 30% above his cost price but allows a discount of 10% at the time of sale. His gain is:

A. 21% B. 20% C. 18% D. 17% Answer: Option D

### Solution(By Apex Team)

Let the cost price be Rs. 100 then the mark up price which is 30% above the cost price, Mark price = (100 + 30% of 100) = Rs. 130 Shopkeeper gives a discount of 10% on mark up price, then the Selling Price = (130 – 10% of 130) = Rs. 117 Gain = 117 – 100 = Rs. 17 $\text{%gain }=\frac{17\times100}{100}=17\%$ Short Cut method: 100(CP) == 30%↑ ⇒ 130(MP) == 10%↓ ⇒ 117(SP) Gain = 17%

## Related Questions on Profit and Loss

A. 45 : 56
B. 45 : 51
C. 47 : 56
D. 47 : 51

A. Rs. 2600
B. Rs. 2700
C. Rs. 2800
D. Rs. 3000

### A sells an article to B at a profit of 10% B sells the article back to A at a loss of 10%. In this transaction:

A. A neither losses nor gains
B. A makes a profit of 11%
C. A makes a profit of 20%
D. B loses 20%