A shopkeeper purchased 70 kg of potatoes for Rs. 420 and sold the whole lot at the rate of Rs 6.50 per kg .What will be his gain percent?
4 1/6 %
6 1/4 %
8 1/3 %
20%
Correct Answer : C
A man buys an article for Rs 27.50 and sells it for Rs 28.60 .Find his gain %?