A vendor claims to sell wheat at a loss of 65%, but he cheats by using weights that are 70% less than the stated weight. What is his actual profit percentage (round off to two decimal places)?

Correct option is D

Given:

Vendor claims a 65% loss 

marked selling price per kg = 35% of CP.
He uses weights 70% less than stated

delivers only 30% of a kg for the price of 1 kg.​​

Solution:
​$$\text{Eff. SP\%}=\frac{35}{0.30}=116.\overline{6}$$​%
Profit %=11$$6.\overline{6}-100=16.\overline{6}\%\approx 16.67\%$$​​