Question

3. Naren, his wife, two sons and his pet dog have to cross
a river. But the only boat that is available for crossing
the river can carry only 80 kg of weight at a time. If
none of the family members including the pet dog can
swim and considering that Naren and his wife each
weighed exactly 80 kg and each of their sons weigh
exactly 40 kg, how will they cross the river?

please give me fast urgent ​

Answer 1

Answer:

First the both sons cross the river. Then one son goes to the other side, he gives boat to the dad. Dad comes across the river. The son who already crossed takes the boat and goes to the other side. He takes the other son with him across the river. One son again takes the boat, he gives the mom the boat and the mom comes across. The son who is already there takes the boat and brings the other son with him. He drops him across the river and then goes to the other side and brings the dog with him across the river.