Question 1051533
Let pp be the Pacific Paradise, cp be the Caribbean Paradise, and mp be the Mediterranean Paradise. Then:
cp=pp+27
mp=2pp-21
So:
pp+pp+27+2pp-21=538
4pp=532
pp=133
The Pacific Paradise has 133 staterooms, the Caribbean Paradise has 160 staterooms, and the Mediterranean Paradise has 245 staterooms. ☺☺☺☺