20.3. The collective farm placed a certain amount of money in the savings bank. If the number of hundreds is added to the number formed by the last two digits, then the result is the annual income from this amount, calculated at $2 \%$ per annum. What is the amount of the deposit placed in the savings bank?

$(7-8$ grades$)$
20.3. Let the number of hundreds in the deposited amount be denoted by $x$, and the number formed by the last two digits of this amount be denoted by $y$. We have the equation: $x+y=(100 x+y) \cdot 0.02$. From this, we find: $50 x=49 y$. The obtained equality allows us to conclude that $y$ is divisible by 50. Since $y$ is a two-digit number, then $y=50$. Then $x=49$. Answer: 4950.