Given :
Apa-bear weighs 250 lb.
Mama-bear weighs 50 pounds less than Papa-bear does.
Their 2 cubs weigh 80 pounds each.
To Find :
The total weight of the Bear family .
Solution :
Weight of mama bear = [tex]250-50\ lb=200\ lb[/tex] .
Total weight is the sum of all all weight .
[tex]W=\text{Weight of papa-bear + weight of mama-bear + weight of 2 cubs}[/tex]
[tex]W=250+200+2\times 80\\\\W=250+200+160\\\\W=610 \ lb[/tex]
Therefore , total weight of the Bear family is 610 lb .
Hence , this is the required solution .