If by selling an article for Rs.60, a person loses 1/7 of money, what would he have gained or lost % by selling it for Rs.77?  Answers:
A) 5% B) 10% C) 23% D) 25% E) 30%
Sol. CP - = EC7 = 70 1-7 6 77-70 % Profit = 100 = 10%   10%
<result>B</result>
If by selling an article for Rs.60, a person loses 1/7 of money, what would he have gained or lost % by selling it for Rs.77?