Problema Solution
A package of floor tiles conatins 27 one-foot-square tiles. Find how many packages should be bought to cover a square ballroom floor whose side measures 66 feet. No partial packages can be bought.
Answer provided by our tutors
Area of bathroom =66*66 square feet.
NUmber of packages required =(66*66)/27.
=161.33.
If we take 161 bags then there will be 0.33*27 =9 square feet tiles will be less.
If we take 162 bags then there will be 0.66*27=18 square feet tiles will be more.
So allowing for wastage it is better to purchase 162 packages.
So answer is 162 packages.