hotel A: Buy -4 -get- one free.For every 4 person who enjoy the buffet dinner ,
they can bring one extra guest who can enjoy the buffet dinner free -of- charge.
Which hotel offers a higher discount per cent for
a)a group of 5 persons?
b)a group of 6 persons?
2.The cost of a pack of pock chop is $40 . The shopowner wants to make a
52 % profit. How much should the marked price be when the pork chop is sold
with 5% discount?(用方程)
3.A shopowner sets the marked price of a camera so as to make of 20% .
Finally , he sells it at a discount of 10% and makes a profit of $256.What is the cost price of the camera ? (用方程)
4.Miss Wong purchased 20 computers at s discount of 20% for $240000
a) Find the marked price of each computer when Miss Wong purchased them.
(用方程)
b)Miss Wong now want to sell all the computers at a marked price 50% higher
than her cost price.Find the profit per cent if she offers a discount of 25 %.
5該!!!!!!急的!!!!!!!!!!!!!! THX!!!!!!!!!!!!!!!!!!!!!
更新1:
第一題都要計ar
