Solution: How long will it take to reduce the charge to 25% of its original charge?

A storage battery discharges at a rate which is proportional to the charge. If the charge is reduced by 50% of its original value at the end of 2 days, how long will it take to reduce the charge to 25% of its original charge?

How long will it take to reduce the charge to 25% of its original charge?

Problem Statement: EE Board April 1990

A storage battery discharges at a rate which is proportional to the charge. If the charge is reduced by 50% of its original value at the end of 2 days, how long will it take to reduce the charge to 25% of its original charge?

Problem Answer:

It will take 3 days to reduce the charge to 25% of its original charge.

Solution:

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