In evening my test plz help me to solve it

A room length 3m,20m wide and 6m height.
Find the floor is to be tiled.if each tile measures 60cm*50cm,find the no. Of tiles required.

2 answers

Floor area = 2000cm * 600cm

tile area = 60 * 50

(2000cm * 600cm)/(60 * 50) = ?
Tiles is 2000cm bt its ans is wrong