A) \[100%\]
B) \[150%\]
C) \[50%\]
D) \[200%\]
Correct Answer: A
Solution :
He gives 800 grams but charges the price of 1000 grams (1kg) \[\Rightarrow \] on every 800 grams, he gains \[(1000-800)\] grams i.e. \[\therefore \] His gain % \[=\frac{200}{800}\times 100=25%\] Short cut: Gain \[%=\frac{error}{true\,\,weight\,-error}\] \[=\frac{200}{(1000-200)}\times 100=25%\]You need to login to perform this action.
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