Question

A man buys 80 pens at rupees 10 per pen and sells 50 pens at rupees 12 per pen and remaining 30 pens at rupees 9 per pen . Find it's gain or loss percent

Answer 1

buy 80 on 10 rupees per pen so total =800

sell 50 on 12 rupee per so total 600

and remaining 30 on rupee per 9 so total 270

total sell=270+600=870

profit =870-800=70

% = 70×100÷800 =8.75