Machine A can assemble a product in 4 hours while machine B can assemble the same product in 3 hours. How long (in hr) does it take to assemble the product if both machines work together? (Enter an exact number as an integer, fraction, or decimal.) hr
Machine A can assemble a product in 4 hours while machine B can assemble the same product in 3 hours. How long (in hr) does it take to assemble the product if both machines work together? (Enter an exact number as an integer, fraction, or decimal.)
hr
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