Often prices are increased or decreased by a percentage.
Katie earns £40 per week for her part-time job. She is to be given a 5% pay rise.
Example 2The prices of all the televisions in a shop are to be increased by 8%.
Example 3In a sale the cost of a computer is reduced by 30%. The normal price of the computer was £900.
A door to door salesman gets 12percent commision on the selling price for the first 20kg that he sells. He gets 20percent commision on the excess he sells,if he sells more than 20 kg . If he had sold 48kg in a month,at rs 80 per kg , calculate his total commision
Original price = 20 Increased by 15% Then new price = 20 + 15 / 100*20 = 20 + 3 / 20 * 20 =20 + 3 = Rs 23 |