Rutvi, while professes to sell her goods at a profit of 20%, Rutvi weighs 900 grams instead of 1000 grams. Find her gain percent.
Solution
Correct Answer: Option B
Let her cost price be Rs. 100.
∴ Her selling price would be Rs. 120
∴ Her cost price for 1000gm is Rs. 100
∴ Her cost price for 1 gm = Rs. 100/1000
She sells 900gm for Rs. 120
∴ His selling price for 1gm = Rs. 120/900
∴ Profit = Selling price – Cost price
∴ Profit = 120/900 – 100/1000 = 300/9000 = 1/30
Now, profit percentage = \(\frac{{Profit}}{{Cost\;price\;}} \times 100 = \;\frac{{\frac{1}{{30}}}}{{\frac{{100}}{{1000}}}}\; \times 100 = \frac{{100}}{3} = 33\frac{1}{3}\;\% .\)
Practice More Questions on Our App!
Download our app for free and access thousands of MCQ questions with detailed solutions