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
答案是A。
请问一下,by the same fraction是什么意思?谢谢!
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