Question

8 cubical metal boxes in dimension 60 cm × 45 cm × 30 cm are to be painted every rate of painting is 200 per metre square find the total cost of painting​

Answer 1

Answer: Rs.234

Step-by-step explanation:

Total surface area of a cubiod is

=2(lb+bh+lh)

=2((60×45)+(60×30)+(45×30))=11700 cm  

1 m=100 cm

11700 cm=1.17 m

Rs.200 per m  

=200×1.17

=  Rs.234