Q1.The square of which of the following numbers would be an odd number/an even number? Why?

(i) 727

(ii) 158

(iii) 269

(iv) 1980

Answers (1)

We know that the squares of even numbers are even numbers and squares of odd numbers are odd numbers.

So squares of 727 and 269 will be odd numbers, and squares of 158 and 1980 will be even numbers.

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