10. An apartment has 10 floors and two cellars for car parking under the basement.A lift is
now,at the ground floor.Ravi goes

10. An apartment has 10 floors and two cellars for car parking under the basement.A lift is
now,at the ground floor.Ravi goes 5 floors up and then 3 floors up,2 floors down and then
6 floors down and come to lower cellar for taking his car. Count how many floors does Ravi
travel all together? Represent the result on a vertical number line.​