****************************************PLEASE DO ALL PARTS CLEARLY**********************************

Based on the relational schema below: Emp(eid: integer, ename: string, age: integer, salary: real) Works(eid: integer, did: integer, pcttime: integer) Dept(did: integer, dname: string, budget: real, managerid: integer) Express the following queries in Relational Algebra. Please make use of the relational algebra operators that was introduced in class (including aggregation and grouping operators). If you believe you cannot express a given query in relational algebra, explain why not. Or if you end up making some additional assumptions in order to express the queries using relational algebra, please state vour assumptions clearly d. Find the name, age and salary of the youngest employee in each department. e. Find the department(s) with the lowes t a verage salary of employees