A seller uses faulty weight in place of a 2 kg weight and earns a 25% profit. He claims that he is selling on the cost price in front of the customers but uses a faulty weight. How much error is there in the 2 kg weight to gain 25%?
A. 250 g
B. 400 g
C. 500 g
D. 300 g
Answer: Option B
Solution(By Examveda Team)
Seller uses faulty weight instead of 2 kg i.e., 2000 gramGain = 25%
Let's say error = $$a$$
$$\eqalign{ & {\text{Profit }}\% = \frac{{{\text{Error}}}}{{{\text{True weight}} - {\text{Error}}}} \times 100 \cr & 25 = \frac{a}{{2000 - a}} \times 100 \cr & \frac{1}{4} = \frac{a}{{2000 - a}} \cr & 2000 - a = 4a \cr & 2000 = 5a \cr & {\text{So, }}a = 400{\text{ gm}}{\text{.}} \cr} $$
Related Questions on Profit and Loss
A. 45 : 56
B. 45 : 51
C. 47 : 56
D. 47 : 51
A. Rs. 2600
B. Rs. 2700
C. Rs. 2800
D. Rs. 3000
A. A neither losses nor gains
B. A makes a profit of 11%
C. A makes a profit of 20%
D. B loses 20%
A. Rs. 3,750
B. Rs. 3,250
C. Rs. 2,750
D. Rs. 2,250
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