Question

A marble tile measures 25 cm by 20 cm. How many tiles will be required to cover a wall of size 4m by 3m. ?
​

Answer 1

Answer:

force is an influence that can change the motion of an object. A force can cause an object with mass to change its velocity, i.e., to accelerate. Force can also be described intuitively as a push or a pull.

Answer 2

Answer:

The number of tiles needed are 240 tiles.

Step-by-step explanation:

Length of wall = 4m = 400cm   [1m=100cm so 4m=400cm]

Breadth of wall = 3m = 300cm [1m=100cm so 3m=300cm]

So area of wall = Length × Breadth sq.unit

                         = 400cm × 300cm

                         = 400 × 300 sq.cm

                       

Length of tile = 25cm

Breadth of tile = 20 cm

So area of wall = Length × Breadth sq.unit

                         = 25cm × 20cm

                         = 25 × 20 sq.cm

So number of tiles required to cover wall = 400 × 300sq.cm × $\frac{1}{25}$ × $\frac{1}{20} sq.cm$

                                                                     = 240

Ans:- The number of tiles needed are 240 tiles.