Question

There are 5 roads leading to a town from a village . The number of different ways in which a villagers can go to the town and return back is​

Answer 1

Step-by-step explanation:

Here in this question, there are 5roads leading to a town from a village. 

He can go by 5 ways and can return by 4 ways

So the number of different ways in which a villager can go to the town and return back is 5×4=20