FERMAT 2023 Problem 9

Three tanks contain water. The number of litres in each is shown in the table below:

\begin{array}{|c|c|c|} \hline \text { Tank A } & \text { Tank B } & \text { Tank C } \\ \hline \text { 3600 L } & 1600 \mathrm{~L} & 3800 \mathrm{~L} \\ \hline \end{array}

Water is moved from each of Tank A and Tank C into Tank B so that each tank contains the same volume of water. How many litres of water are moved from Tank A to Tank B?

Answer Choices
A. 500 \mathrm{~L}
B. 600 \mathrm{~L}
C. 700 \mathrm{~L}
D. 800 \mathrm{~L}
E. 900 \mathrm{~L}