A drained smartphone was charging from a power-bank at 88 percent. The battery capacity of the smartphone is 2,400 milliamps. The battery capacity of the power-bank is 20,000 milliamps.
In exactly 1 hour, the phone battery is half full and the power-bank is at 80 percent. What is the charging speed of the phone? What is the discharging speed of the power-bank?
In exactly 1 hour, the phone battery is half full and the power-bank is at 80 percent. What is the charging speed of the phone? What is the discharging speed of the power-bank?
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Answer:
20 percent of charging every minute