Question
A book was sold for Rs. 250.90, earning a profit of 18%.
If the selling price had been Rs. 230.40 instead, what would have been the profit or loss percentage?Solution
ATQ,
SP = Rs. 250.90 and profit percentage = 18%
So, CP = 100/118×250.90 = Rs. 212.63
Now, new SP = Rs. 230.40 
= 8.34% profit
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