Question

A shopkeeper sold two watches for Rs. 425 each, gaining 10% on one and losing 10% on the other. Then he

• A. neither gains nor loss
• B. gains 1%
• C. loses 1%
• D. none

Answer 1

Answer: (C)

loses 1%

Selling price of watch $A$ and watch $B=$ Rs. $425$

Let cost price of watch $A=x$

Profit $=10\%$

$\therefore \frac{110}{100}x=425$

$x=386.36$

Let cost price of watch $B=y$

Loss $=10\%$

$\therefore \frac{90}{100}y=425$

$y=472.22$

Net cost price $=x+y=858.5858$

Net selling price $=850$

Loss$\%=\frac{858.5858-850}{858.58}\times 100=1\%$