Question

A dishonest dealer professes to sell at cost price but uses a 900 gram weight instead of a 1 kilogram weight. Find the percent profit to the dealer.

• A. 10%
• B. 11.11%
• C. 12.5%
• D. None of these

Answer 1

The correct option is B 11.11%

Let the cost price be Rs. x per kg

Then cost price of 900 gm
$=\frac{9}{10}x$

Hence % profit

$=\frac{x-\frac{9}{10}}{\frac{9}{10}x}\times 100=\frac{100}{9}\%=11.11\%$