Question
In one coffee shop, the round table can seat 9 customers and the oval table can seat 3 customers. During dinner time, all the tables in the coffee shop were occupied. The number of each type of tables in the coffee shop is more than 3 and less than 9. If there were 81 customers, find

(a) the number of oval tables
(b) the number of round tables
4 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

In one coffee shop, the round table can seat 9 customers and the oval table can seat 3 customers. During dinner time, all the tables in the coffee shop were occupied. The number of each type of tables in the coffee shop is more than 3 and less than 9. If there were 81 customers, find

(a) the number of oval tables
(b) the number of round tables