Question

A certain virus is dying off at a rate of 18% per hour. Initially there were

40,000 grams of the strain. If this continues at this rate, how much of the
strain would still be alive after 48 hours? (Round your answer to the
nearest whole number.) *

Answer 1

3 strain would still alive after 48 hours

Explanation:

Initial population of virus = 40000 grams

A certain virus is dying off at a rate of 18% per hour.

We are supposed to find how much of the strain would still be alive after 48 hours

Formula :
`N(t)=N_0(1-r)^t`

`N_0`=Initial population

N(t)= Population after t hours

r = rate of decrease = 18% = 0.18

t = time = 48 hours

So,the strain would still be alive after 48 hours=
`40000(1-0.18)^(48)=2.91 \sim 3`

Hence 3 strain would still alive after 48 hours