Answer:
10 tables are needed to seat 65 people.
Explanation:
Given : 
There are total 65 people.
7 people can be seated on each table .
To Find : No. of tables required to seat 65 people.
Solution : 
Since 7 people can sit on no. of tables = 1 
1 people sit on no. of tables = 1/7
65 people sit on no. of tables 
= 

⇒ 

⇒ 9.28 ≈ 10 tables are needed to seat 65 people.
Thus 10 tables are needed to seat 65 people.