For the following parallel chain reaction,what will be the value of the overall half-life of $A$ in minutes?
Given that $\frac{[B]_t}{[C]_t} = \frac{16}{9}$
$A \xrightarrow{k_1 = 2 \times 10^{-3} \ s^{-1}} 4B$
$A \xrightarrow{k_2} C$

  • A
    $693$
  • B
    $\frac{693}{210}$
  • C
    $\frac{693}{30}$
  • D
    $\frac{693}{7}$

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