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Discussion Forum



1)

Evaluate$\sqrt{248+\sqrt{51+\sqrt{169}}}$


A) 16

B) 15

C) 17

D) 13

Answer:

Option A

Explanation:

Given expression $ =\sqrt{248+\sqrt{51+\sqrt{169}}} $
$=\sqrt{248+\sqrt{51+13}}$
$=\sqrt{248+\sqrt{64}}$
$=\sqrt{248+8 }$
$=\sqrt{256}=16$