The cost of carpeting a room 18 m long with a carpet 75 cm wide at Tk. 4.50 per meter is TK. 810. The breadth of the room is:
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Job Solution Palli Karma-Sahayak Foundation (PKSF) Palli Karma-Sahayak Foundation - Asst. Manager - 23.12.2016 গণিত
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A tap can fill a tank in 6 hours. After half the tank is filled, there more similar taps are opened. What is the total time taken to fill the tank completely ?

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