Answer
Room 2 contains more moisture.
Work Step by Step
From table A-4:
1) At $25^{\circ}C$ $P_{sat,1}=3.17kPa$
2) At $20^{\circ}C$ $P_{sat,2}=2.339kPa$
Then:
$P_{1}=\phi_{1} P_{sat,1}=0.4*3.17kPa=1.268kPa$
$P_{2}=\phi_{2} P_{sat,2}=0.55*2.339kPa=1.286kPa$
Since $P_{2}\gt P_{1}$ Room 2 contains more moisture.
