Thanks this my daughter again with this quiz,here's how the story goes.
A group of 20 people stranded on an island,made a raft,4 set sail on the raft to the mainland,taking 1 hour with all four rowing,whats the shortest time to get everybody safely to the mainland??
Thanks for any answers
I can't work it out but would be interested in the answer
Does it take 4 people to row?1 hour there 1hour back 1 man coming back on his own can he he row the raft alone my head is spinning please tell me the answer
I assume they mean everyone on the island. It would take 1 person 4 hours to row back by himself and so you have to work out the optimum number of rowers which I assume is 2 but I dunno (it's a bit late) :-)