Question

Rajan his wife and their son want to cross a river but the ferryman was not available there was only a small country boat but they were born that it is where was dangerous to carry more than 62 grams weight of Rajan himself is 60 kilograms is why weight is 40 kilograms and that of his son is 20 kilograms can you tell them how to cross the river

Answer 1

once rajan will cross and his wife and son can cross the next time