[問題] 陳向東數學p.237&p.239
大家好~我有兩題陳向東數學看不太懂題目的意思
想請教版上的朋友解答~
p.237
第20題
What is the maximum number of cubes with sides of a length that could
fit inside a cube with sides of length 2s?
(A)8
(B)16
(C)32
(D)64
(E)128
答案是D
"fit inside a cube with sides of length 2s"這句是什麼意思??
-------------------------
p.239
第26題
A car dealer who gives a customer a 20 percent discount on the list price
of a car still realizes a net profit of 25 percent of cost. If the dealer's
cost is $4800, what is the usual list price of the car?
(A)$6000
(B)$6180
(C)$7200
(D)$7500
(E)$8001
答案是D
車商給客戶打八折 可以從八折的價錢得到25%的淨利 (是這個意思嗎?)
"the dealer's cost is $4800" 因為不懂4800是什麼東西這題完全算不出答案QQ
希望大家能幫愚鈍的我解惑 感謝~~~
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