GATE BT 2025 | Question: 3

Question

​​​Let $y(t)$ be a bacterial population whose growth is given by

$$ \frac{d y}{d t}=\lambda(y+2) $$
where $\lambda$ is the growth rate constant. If $y(0)=1$ and $y(1)=4$, then the value of $\lambda$ is

• A. $\ln 2$
• B. $\ln 3$
• C. $\ln 4$
• D. $\ln 6$

Answer 1

A