Question8. a) A stationer buys 1 dozen of pens at Rs 20 each and sells them at Rs 25 each. (ii) Find the cost price and selling price of 1 dozen of pens. (ii) How much profit does he make in 1 dozen of pens. (iii) Express his profit into profit percent. (iv) If he had given Re 1 discount in each pen, what would be his profit percent? b) A grocer purchased 5 dozen of eggs at Rs 12 each. 10 eggs were broken and he sold the remaining eggs at Rs 14 each. (i) Find the cost price of total number of eggs and the selling price of the remaining number of eggs. (ii) Calculate his profit or loss and express it in percent. (iii) If non of the eggs were broken, how much profit or loss percent would he make? c) A fruit seller sold 50 kg of oranges at the rate of Rs 80 per kg and gained Rs 800. (i) Find the selling price of 50 kg of oranges. (ii) At what rate of price did he buy the oranges? (iii) Calculate his profit percent.
1 kg d) A vegetable seller purchased 1 quintal of potatoes at Rs 35 per kg and sold at a loss of Rs $\mathbf{3 5 0}$. Find: (i) the rate of selling price (ii) Loss percent.