Answer
Please see the work below.
Work Step by Step
We know that:
$\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}$
This can be rearranged as:
$V_2=\frac{P_1V_1T_2}{T_1P_2}$
We plug in the known values to obtain:
$V_2=\frac{1.2\times 2.5\times 25}{248\times 0.003}=840L$