Question

a mother and her daughters, leena and reena, want to go across a river in a small boat. the boat cannot hold more than 100 kg . the mother weights 70 kg. leena and reena weight 40 kg each. how will they. cross the river?

Answer 1

firstly both the daughters will cross the river and then one of them(Leena) will return . after that the mother will cross the river and then Reena will come back to the bank and take Leena along with her to the other bank side of the river

Answer 2

At first, Leena and Reena will cross that is 80kg will go at a time. Then, Leena will return again to her mother. Now, mother will go, that is 70kg at a time. Then, again Reena will return to take Leena. Now, the boat has 80kg again and all of them are on the other side of the river...........hope it worked.......