Question

. A brick has a cubical shape with an edge
of length 45 cm. How many such bricks
can fit in a room having length 4.5 m,
breadth 2.7 m and height 1.8 m?​

Answer 1

Answer:

240

Step-by-step explanation:

Volume of room=4.5×2.7×1.8cm ^3

                            =2187×10^4 cm^3

                           =21.87 m^3

Volume of brick=45^3 cm^3

                          =91125cm^3

                          =0.091125 m^3

Let n be the number of bricks  ,

n *0.091125=21.87

So,

n=21.87/0.091125

n=240

Hence, number of bricks =240