Qus: Which of the following is an irrational number?

Qus निम्नलिखित में से कौन एक अपरिमेय संख्या है?

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A. √23
B. √225
C. 0.3796
D. 7.478478

Solution

A. √23

Explanation

√23 = 4.79583152331… Since the decimal expansion of the number is non-terminating non-recurring. Hence, it is an irrational number. But, √225 = 15, 0.3796 and 7.478478 are terminating.