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The length, width, and height of a rectangular chamber are changing at the rate of 3 feet per minute, 2 feet per minute and 1/2

The length, width, and height of a rectangular chamber are changing at the rate of 3 feet per minute, 2 feet per minute and 1/2 foot per minute, respectively. Find the rate at which the volume is changing at the instant the length is 10 feet, the width is 6 feet, and the height is 4 feet.

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