20. A ronm is 8.5 m long, 6.5 m broad and s.4 m high Il has two doors, – InterviewSolution

1.	20. A ronm is 8.5 m long, 6.5 m broad and s.4 m high Il has two doors, cach measuring(1.5 m by 1 rm) and two windows, each mcasuring 12 m by 1 m). Find the cost of paintingitsfour walls at 160 per m
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