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Tue 3 Jun, 2014 06:57 am
if half life of a substance is 3.8 days and its quantity is10.38g .Then the quantity Left after 19days Will be?
@haniya,
The substance undergoes 19/3.8 halvings.
@haniya,
Hmmmm .... I wonder how many 3.8 days are in 19 days? Hmmmmmmm .....
now do it yourself.