Let x be the number of Deluxe staterooms on cruise Pacific paradise.
Then the number of deluxe staterooms on Carribean paradise will be x+28
The number of deluxe staterooms in Mediterrarean Paradise will be 3x-31
Since the total number of deluxe staterooms is 512,
x+x+28+3x-31= 512
Solving for x . 5x=515
Or x=103
Number of rooms on
Pacific
“
“ Carribean Paradise=131
“ “ Mediterrarean
Paradise= 278