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Q23:
AMOUNT OF BACTERIA PRESENT
Time>> |
Amount>> |
1:00 P.M.>> |
10.0 grams>> |
4:00 P.M.>> |
x grams |
7:00 P.M. |
14.4 grams |
Data for a certain biology experiment are given in the table above. If the amount of bacteria present increased by the same fraction during each of the two 3-hour periods shown, how many grams of bacteria were present at 4:00 P.M.?
A. 12.0
B. 12.1
C. 12.2
D. 12.3
E. 12.4
Answer: A
“If the amount of bacteria present increased by the same fraction during each of the two 3-hour periods shown“ 这句话是什么意思啊？
谢谢！！ | 
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发表于 2005-6-6 13:25:00
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