Consider below info to be a table:
AMOUNT OF BACTERIA
TIME - AMOUNT
1PM - 10gms
4PM - x gms
7PM - 12.1 gms
Data for a certain biology experiment are given in the table above. If the amount of bacteria present increased by the same factor during each of the two 3-hour periods shown, how many grams of bacteria were present at 4PM ?
Pick:
A) 12.0
B) 12.1
C) 12.2
D) 12.3
E) 11.0
let say the factor is x, the at 7PM quantity = 10 (i.e. quantity @1PM)* x^2 =12.1 =&gt; x^2 =1.21 or x = 1.1 =&gt; @4PM quantity = 10x =10*1.1= 
<gadget id="calculator">10*1.1</gadget>
<output>11</output>
11.   Answer 11.0
<result>E</result>
Consider below info to be a table:
AMOUNT OF BACTERIA
TIME - AMOUNT
1PM - 10gms
4PM - x gms
7PM - 12.1 gms
Data for a certain biology experiment are given in the table above. If the amount of bacteria present increased by the same factor during each of the two 3-hour periods shown, how many grams of bacteria were present at 4PM ?