how to solve query in sql?

CREATE TABLE Employees (
    ID int NOT NULL AUTO_INCREMENT,
    Name varchar(100),
    Sal decimal (10,2),
    City char (3),
    PRIMARY KEY (ID)
);

INSERT INTO Employees (Name, Sal, City) VALUES ('Ramesh',20000, 'BLR');
INSERT INTO Employees (Name, Sal, City) VALUES ('Sunil',24000, 'DEL');
INSERT INTO Employees (Name, Sal, City) VALUES ('Sreeja',21000, 'MUM');
INSERT INTO Employees (Name, Sal, City) VALUES ('Pavan',23000, 'DEL');
INSERT INTO Employees (Name, Sal, City) VALUES ('Maya',24000, 'MUM');