Ganesh
from
Global Indian International School, Kuala Lumpur
Subject :NSO Class : Class 8
A bacteria undergoes binary fission in every minute. This bacterium can fill up a cup in 1 hour. In how much time will the cup be half filled?
A 30 minutes
B 59 minutes
C 20 minutes
D 40 minutes
The solution says B!!!
Ans 1:
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Utkarsh Jetly
from
g, ggn
Class : Class 9
See...it has to be B as the bacteria doubles every minute...considering this if the cup is full at 60 minutes, it has to be half 1 minute ago, i.e, 59 minutes
Ans 4:
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dhruv
from
Sri Aurobindo Memorial School, Bengaluru
Class : Class 9
it should be 59 minutes as amoeba undergoes binary fission every minute.
therefore,half of the jar will be filled in 59 minutes.after a minute it undergoes binary fission and fills the jar.