[計量] 兩題數學問題
看板GRE (GRE入學考試)作者Allicia (nothing but a fool)時間18年前 (2008/03/30 11:48)推噓4(4推 0噓 4→)留言8則, 5人參與討論串1/2 (看更多)
1. The price of a certain hardback book is 3 times the price
of the paperback edition of the same book. At a sale, the
number of hardback books sold was 5 times the number of
paperback books sold.If a total of $600 was collected from
the sale of this book, how much was collected from the sale
of the paperback edition?
Ans. $360.00
2. 4 □ 7
△ 2 3
+ 1 6 2
————————
1, 2 2 2
□and△ represent single digits in the correctly worked computaion above.
A. the value of□+△ B.8
Ans. [D]
兩題我都不懂，想煩請版友解釋，謝謝。
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推
03/30 11:58, , 1F
03/30 11:58, 1F
推
03/30 12:22, , 2F
03/30 12:22, 2F
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03/30 12:23, , 3F
03/30 12:23, 3F
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03/30 12:23, , 4F
03/30 12:23, 4F
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03/30 12:23, , 5F
03/30 12:23, 5F
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03/30 23:11, , 6F
03/30 23:11, 6F
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04/04 23:33, , 7F
04/04 23:33, 7F
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04/11 16:15, , 8F
04/11 16:15, 8F
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