1. Write a SQL statement to show the list of distinct cities the salesmen come from. (3 marks)
2. Write a SQL statement to show the customer name, city and grade where the grade of a customer is greater than 100 (3 marks)
3. Write a SQL statement to show city name and the number of customers from each city (3 marks)
4. Write a SQL statement to show the salesman and the customers served by that salesman. (3 marks)
5. Write a SQL statement to show the customer name, city name of a customer, salesman name and commission where a salesman gets more than 0.12 commission from the company. (3 marks)
6. 
   

F. Write a SQL statement to show the maximum grade of a customer where the city of customer is in London. (3 marks)