Question

For an odd number $427$, the square of this odd number will be ____.

• A. even
• B. odd
• C. negative
• D. none of these

Answer 1

The correct option is B odd

Since, the last digit of number $427$ is $7$, $7$ being an odd number the whole square number will be odd because $7\times 7=49$

Thus, square root of an odd number is odd

Therefore, option B is the correct answer.