A) Loss of 1%
B) no profit no loss
C) Profit of 10%
D) loss of 10%
Correct Answer: A
Solution :
[a] 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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