MCAT Question of the Day
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    Q:

    		 The half-life of a radioactive element, called MCATium, is X seconds. A different element has half-life which is double that of MCATium. How long will it take for this element to undergo 6 half-lives?
    		 

    A

    		 6X

    B

    		 12X

    C

    		 18X

    D

    		 36X



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