Question

if a man sell 15 articles at Rs 50 then he gain 20% profit then how many articles he should sell at Rs 50 so that he has a loss of 25%?

Answer 1

$20 \div 100 \times 50 \\ = 10 \\ 25 \div 100 \times 50 \\ = 12.5 \\ 50 - 12.5 \\ = 37.5$