Math

If a faucet is dripping at the rate of 7.5 drops per minute and there are 20 drops in a milliliter, how many liters of water are wasted in a 30-day month?

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  1. t = 24hrs/day * 30days * 60min/hr = 43,200min.

    20 drops/ml * 1000 ml/lter = 20,000drops/liter.

    7.5 drops/min * 43,200 min * (1/20,000)liters/drop = 16.2 liters.

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