Practice Test Discussion

What approximate value should come in place of the question mark (?) in the given questions?

$\sqrt{1230} + \sqrt{4230} = ?$

[IBPS (PO), 2014]

200

100

150

250

Explanation

By applying exact square root value we get,

$\begin{array}{l} \sqrt{1230} + \sqrt{4230} = ? \end{array} = 35 + 65 = 100 [∵ \sqrt{1230} = 35 a n d \sqrt{4225} = 65]$

Hence, Option C is correct.

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