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JEE MAIN 2021
24-02-21 S1
Question
The population $P=P(t)$ at time ' $t$ ' of a certain species follows the differential equation $\frac{d P}{d t}=0.5 P-450$. If $P(0)=850$, then the time at which population becomes zero is
Select the correct option:
A
$\log _{\mathrm{e}} 18$
B
$\log _{\mathrm{e}} 9$
C
$\frac{1}{2} \log _e 18$
D
$2 \log _{\mathrm{e}} 18$
✓ Correct! Well done.
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