5. A room is 5.8 m long, 4.2 m wide and 3.2 m high. It has one door measuring 1.2 mx 25.
and three windows each measuring 1 m ×.75 m. Find the cost of whitewashing its walls
the rate of ₹30 per square metre.
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Answer:21.6*30=648
Step-by-step explanation:
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