The length of the corridor is 15 m and the width is 4 m. It is necessary to cover the floor

The length of the corridor is 15 m and the width is 4 m. It is necessary to cover the floor of the corridor with square tiles with a side length of 10 dm.

The unknown quantity of tiles required to cover the floor in the corridor is denoted by the conditional variable “X”.
At the next stage, taking into account the conditions of the problem and knowing that 1 meter contains 10 decimeters, we make the equation: X = 15 x 4/1 x 1.
As a result of solving this equation, we get X = 15 x 4 = 60 tiles.
Answer: 60 tiles are needed to cover the floor.