A trader claims to sell rice at a profit of 39%, but also dishonestly uses a weight which is 17% less than what is mentioned on it. Find the total percentage of profit earned by the trader. (Round off the answer to the nearest whole number.)

Correct option is B

Given:

Trader claims 39% profit.

He uses a weight 17% less, i.e., he gives only 83% of actual weight.

Formula Used:

Profit % = $$\frac{\text{SP – CP}}{\text{CP}} \times 100$$​​

Solution:

Let CP = 100

Trader claims 39% profit, so

SP = 139

Actual quantity given = 83% of 1 kg

Cost of 0.83 kg = 0.83 × 100 = 83

Actual profit earned  = 139 - 83 = 56

Actual profit % = $$\frac{56}{83} \times 100 \approx$$ 67.47% = 67%(approx)