A sample contains the number of nuclides of `Y` to be `4` times that of `X`. How much time should elapse so that th

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Q 1251380224.     A sample contains the number of nuclides of `Y` to be `4` times that of `X`. How much time should elapse so that the number of nuclides of `X` and `Y` become equal? Radioactive nuclides `X` and `Y` have half-lives of `30` and `10` minutes respectively.
A

`20` min.

B

`15` min.

C

`60` min.

D

`30` min.

HINT


Solution
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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