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Answer the questions based on the information given below.
A microorganism Xeta combines with another microorganism of its kind to form a single microorganism unit. If it does not find another Xeta every second, it dies. There are 2x1 Xeta in the incubation flask initially. Xeta will find another Xeta provided it is there in the same chamber.
When will all the Xeta be dead?
Options:
A .  x seconds
B .  x-2 seconds
C .  x-1 seconds
D .  2x seconds
E .  B at 1pm
Answer: Option A
:
A
Assume no. of Xeta=1 (you can assume any value which satisfies 2x1)
Then, x = 1.
If there is 1 Xeta, it will die after the 1st second.
Put x=1 in the options and check which option gives answer as 1.
Answer will be option (a) - x seconds.

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