<prompt> Ngola potso e khutlisetsang moputso o tloaelehileng oa basebetsi lefapheng ka leng.nan  <response>: Instruction in English: Write a query that returns the average salary of employees in each department. . Response in English: Assuming that the data is stored in a relational database with a table named employees that has columns department and salary, the query would look something like this:SELECT department, AVGsalaryFROM employeesGROUP BY departmentThis query selects the department and average salary columns from the employees table. The AVG function calculates the average salary for each group of rows defined by the GROUP BY clause. In this case, the groups are defined by the department column, so the query calculates the average salary for each department. . Response in Sesotho: Ka ho nka hore data e bolokiloe polokelong ea litaba tsa likamano tse nang le tafole e bitsoang bahiruoa e nang le likholomo lefapha le moputso, potso e tla shebahala tjena: KHETHA lefapha, AVGmoputso HO TSOA HO BATHO GROUP BY. lefapha Potso ena e khetha lefapha le lipalo-palo tsa meputso ho tsoa tafoleng ea basebetsi. Mosebetsi oa AVG o bala palohare ea moputso bakeng sa sehlopha ka seng sa mela e hlalosoang ke GROUP BY. Tabeng ena, lihlopha li hlalosoa ke kholomo ea lefapha, kahoo potso e lekanya moputso o tloaelehileng oa lefapha ka leng. 