A trader marked the selling price of an article at 10% above the cost price. At the time of selling, he allows certain discount and suffers a loss of 1%. He allowed a discount of :

A. 10 % B. 10.5 % C. 11 % D. 12.5 %

A man purchases an electric heater whose printed price is 160 if he received two successive discounts of 20% and 10% he paid:

A. Rs. 112 B. Rs. 129.60 C. Rs. 119.60 D. Rs. 115.20