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Question
Shyamli bought a battery. She read on it Life: 2000 hours. She uses it throughout the day and the night. How many days will the battery run?
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Solution
Total life of battery = 2000 hours
Number of the hour in a day and night = 24
Number of days the battery lasts = 2000 ÷ 24
80 + 3
`24")"overline2000`
– 1920
80
72
8
Here, quotient = 83 and remainder = 8
So, the battery will last 83 days.
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