Question

How many tiles will be needed to cover the bathroom floor?
I. The area of the floor is 400 sq m.
II. Each tile has a measurement of 10 cm by 20 cm.
III. The floor has the dimension 16 x 25 $m^2$

• A. Only III
• B. Only I
• C. Any one of the three statement can be dispensed with
• D. None of the three statements can be dispensed with

Answer 1

The correct option is B Only I

By merely knowing the area we cannot find the number of tiles as some tiles may not fit exactly on to this floor Statement III provides us with dimensions that area exact multiples of the size of the tiles This shows that the tiles can fit exactly We can thus answer the question using statements II and III In other word statement I can be dispensed with