There are 7 men.
Each of the 7 men has 7 wives
First, let’s calculate the total number of wives:
7 men x7 wives/ man =49 wives
Now, each man and each wife has 7 children
Let’s calculate the total number of children each man has (since he has 7 wives, each having 7 children): 7 wivesx7 children/wife=49 children per man
Since there are 7 men, the total number of children is: 7 menx49 children/man-343 children
Finally, let’s add up all the people: 7 men 49 wives 343 children
So the total number of people is : 7+49+343=399
the answer 399.