MCQ
Mark $(\checkmark)$ tick against the correct answer in the following:
$\bigg\{6^{-1}+\Big(\frac{3}{2}\Big)^{-1}\bigg\}=?$
  • A
    $\frac{2}{3}$
  • B
    $\frac{5}{6}$
  • $\frac{6}{5}$
  • D
    None of these.

Answer

Correct option: C.
$\frac{6}{5}$

$\bigg\{6^{-1}+\Big(\frac{3}{2}\Big)^{-1}\bigg\}=\bigg[\Big(\frac{1}{6}\Big)+\Big(\frac{2}{3}\Big)\bigg]^{-1}$
$=\Big(\frac{1+4}{6}\Big)^{-1}=\Big(\frac{5}{6}\Big)^{-1}$
$=\frac{6}{5}$

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