Answers

2016-03-16T12:04:45+05:30
Outer surface=TSA=6a^2=6(8)(8)=384sq.m.

1kg covers 16 sq.m. 
So, 384/16= 32kgs will cover 384sq.m. 

cost of paint= 36.50*32= 1168

ratio TSA:LSA :: 3:2
2 5 2