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Classify $225$ as rational or irrational:

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Rational

Irrational

Both of these

None of the above

answer is A.

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Detailed Solution

Given number is

225

.
Rational numbers:
The decimal expansion of irrational numbers is non terminating non-recurring (repeating).
Find the square root of √225:
√225 = 15 =

151

Applying decimal expansion of real numbers:
The value of √225 is

151

.
Since the number

151

can be represented in

p q

form so, it is a rational number.
Hence,√225 is a rational number.
Therefore, the correct option is 1.

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