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1977—1978 TEXTBOOK INVENTORY FOR SCHOOLS X AND Y BY YEAR OF PURCHASE(as a perce
1977—1978 TEXTBOOK INVENTORY FOR SCHOOLS X AND Y BY YEAR OF PURCHASE(as a perce
游客
2024-01-12
16
管理
问题
1977—1978 TEXTBOOK INVENTORY FOR SCHOOLS X AND Y BY YEAR OF PURCHASE
(as a percent of the 1977 — 1978 inventory)
The following 3 question refer to the data above.
选项
A、495
B、940
C、1020
D、1435
E、2800
答案
D
解析
标题:1977至1978年度学校X和学校Y教科书的库存,按购买时间分类。(作为1977-1978年度库存的百分比)注:所有书都在每年的7月1日购买1974,1975,1976年两个学校购买的库存教科书的总数是多少?
解:本题的正确答案是(D)。学校X在1974,1975,1976年购买的图书总数为:1500 ×(13%+12%+8%)=495;学校Y在1974,1975,1976年购买的图书总数为:2000 ×(18%+21%+8%)=940;两个学校购买图书的总数=495+940=1435,所以(D)is correct。
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