54. Two workers had the same salary. The salary of the first worker was increased by $100 \%$, while that of the second worker was increased by only $50 \%$. By what percentage is the new salary of the first worker greater than that of the second?
54. Let the original salary be $x$, then after the raise, the first person's salary will be $2x$, and the second person's salary will be $1.5x$. But $0.5x$ is one third of $1.5x$. Answer: $33 \frac{1}{3} \%$.