A) loss of 1%
B) no profit no loss
C) profit of 10%
D) loss of 10%
Correct Answer: A
Solution :
Cost price of watch on which he get 10% Profit, \[{{C}_{1}}=99\times \frac{100}{110}=90\] Cost Price of watch on which he losses 10%, \[{{C}_{2}}=\frac{99\times 100}{90}=110\] Net loss% \[\frac{(110+90)-(99+99)}{(110+90)}\times 100\] \[=\frac{200-198}{200}\times 100=1%\]
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