A family needs to cross a river in a small raft. Father weighs 90kg, mother weighs 80kg, son
weighs 60kg, daughter weighs 40kg, and they have
a 20kg bag. The raft cannot bear a load heavier
than 100kg. How can they all get to the other side
with their bag?

they drown and realize they are sad poor people from a third world country with no bridges

Step-by-step explanation:

so basically you can take more than one trip you can take the mother and the bag at the same time

Step-by-step explanation:

and then you can get the daughter in the son at the same time and then for the final trip you take the father by himself

i use my brain for prombles like this maybe you could try it

step-by-step explanation:

a)(x-2)^2+(y-1)^2=9

step-by-step explanation:

(picture explains)