A radioactive material decays by simultaneous emission of two particles with half lives `1620` and `810` years. The

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Q 1212845730.     A radioactive material decays by simultaneous emission of two particles with half lives `1620` and `810` years. The time after which one-fourth of the material remains, is
A

`2430` years

B

`1080` years

C

`3240` years

D

`4860` years

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

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