smc

We can begin by labeling the number of initial jellybeans $x$. If she ate $20\%$ of the jellybeans, then $80\%$ is remaining. Hence, after day 1, there are: $0.8\ast x$ After day 2, there are: $0.8\ast 0.8\ast x$ or $0.64x$ jellybeans. $0.64x=32$, so $x=\boxed{50}$