A room is 7 m long and 5m broad. It has one door measuring 2m by 1.5m and two windows, each measuring 1.5m by 1m. The cost of painting the walls of the room at Rs. 80 per meter square is Rs. 5280. Find the height of the room.
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The manufacturing industries help in earning foreign exchange by producing much surplus amount of finished goods. Such surplus goods are needed to get exported to the countries which increases the foreign exchange.
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