A tank measures 2 m in length, 1.6 m in width and 1 m in depth. Water – InterviewSolution

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1.	A tank measures 2 m in length, 1.6 m in width and 1 m in depth. Water is there upto 0.4 m heigth. Bricks measuring 25 cm xx 14 cm xx 10 cm are put into tank so that the water may come up to the top.Each brick absorbs water equal to(1)/(7)th of its own volume. How many bricks will be needed ?
Answer» ANSWER :640

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