Square Roots and Cube Roots | Arithmetic aptitude | Discussion Page

1)

$\left( \sqrt{\frac{225}{729} } - \sqrt{\frac{25}{144} } \right) + \sqrt{\frac{16}{81} } = ?$

A)

$\frac{4}{15}$

B)

$\frac{5}{16}$

C)

$\frac{5}{17}$

D)

$\frac{7}{16}$

Answer:

Option B

Explanation:

Given exp = $\sqrt{\frac{225}{729} } - \sqrt{\frac{25}{144} } - \sqrt{\frac{16}{81} }$
$= ( \frac{15}{27} - \frac{5}{12} ) + \frac{4}{9}$
$= (\frac{15}{108} \times \frac{9}{4} )$
$= \frac{5}{16}$

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Answer:

Explanation: