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1.If the product of 412.7 & 100 is rounded to the nearest hu

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1.If the product of 412.7 & 100 is rounded to the nearest hundred,the answer will be :a.400 b.4,100 c.4,172 d.41270 e.41300
2.An art gallery has three collections:modern art,scupture,and photography.If the 24 items which make up the modern art collection represent 25%of the total number of items in the gallery,then the average number of items in each collection is:
a.8 b.24 c.32 d.96 e.288
1.If the product of 412.7 & 100 is rounded to the nearest hu
1 d (412.7乘上100的得数精确到百位是:412.7)
2 c (大概的意思是:一个美术馆有三个展区:modern art,scupture,photography,如果modern art展区有24个项目并占美术馆项目总数的25%,那么每个展区平均有多少项目:24/25%*3=32)