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The interest on a certain deposit at 4.5%p is taka 202.50 in one year. How much will the additional interest in one year be on the same deposit at 5% p.a?
The half life period of a radioactive substance is best determined by counting the number of alpha particles emitted per second in a Geiger Muller counter from its known quantity. If the half life period of a radioactive substance is one month, then