Practice Test Discussion

A number when subtracted by $\frac{1}{7} t h$ itself gives the same value as the sum of all the angles of a triangle. What is the number?

[Corporation Bank (P0), 2009]

224

210

140

350

187

Explanation

Let the number be 'x'

Then,

$\Rightarrow x - \frac{x}{7} = 180 ˚ \Rightarrow \frac{6 x}{7} = 180 \Rightarrow x = 210$

Hence, Option B is correct.

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