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標題:

急問 3條數 中一 英文 20點

發問:

http://i.imgur.com/9Fg8O.jpg 救式 急

最佳解答:

8: 式: (500x(100%-15%)=425 400x(100%-10%)=360 600x(100%-45%)=330) C最抵(c is the lowest price) 9. 式:(1/5X100%=20%) 個discount係20% 10.A有8折 B買3送1 (式B= 100%X3/4 =25%) B有75折 B抵d

 

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其他解答:

1Shop A price= $500x(1-15%) =$425 Shop B price= $400x(1-10%) =$360 Shop C price= $600x(1-45%) =$270 Shop C sell at the lowest price. 2.1 people get free among 5people, that is 1/5x100% =20% 3.shop A has a 20% discount shop B's discount =1/(1+3)x100% =25% if they have the same price then shopB offers a larger discount8758B59A7FA1EEA7
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