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10 March, 16:43

A vat containing 10,000 gallons of black ink supplies 3 different printing presses. Press 1 uses 12 gallons per minute, press 2 uses 10 gallons per minute and press 3 uses 15 gallons per minute. If the vat was full at 7:30 AM and all three presses run constantly when will the vat run dry?

12:00 P. M.

12:00 A. M.

12:20 P. M.

2:00 P. M.

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Answers (2)
  1. 10 March, 17:07
    0
    12:00 pm is the answer to this question.
  2. 10 March, 20:29
    0
    Answer: 12:00 A. M.

    Press 1 after 1 hour - 720

    Press 2 after 1 hour - 600

    Press 3 after 1 hour - 900

    Total after 1 hour - 2,220

    10,000:2,220 = 4.5

    4.5 hours after 7:30 am = 12 am
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