If a number is added to 2/5th of itself, the value so obtained is 455. What is the number ?
Let the desired number be 'n'.
n+2/5th of n = 455.
$$n+\frac{2}{5}n=455$$.
$$\frac{7}{5}n=455$$.
$$n=325$$.
Hence, Option C is correct.
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