Respuesta :
The mass of mysterium"will remain after 64 days should be 18.75.
Calculation of the mass of mysterium:
Since The half life of "mysterium" is 16 days. And, it contained the 300 g sample.
Now the mysterium sample should be
= 300 / 16
= 18.75
Here we basically divide the sample by the half-life so that the mass could come
Therefore, The mass of mysterium"will remain after 64 days should be 18.75.
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