1.

(121)2 is a ……………… number. A) prime B) odd C) even D) none

Answer»

Correct option is  B) odd

Correct option is (B) odd

Unit's digit of number 121 is 1.

\(\therefore\) Unit's digit of number \((121)^2\) is 1 which is not divisible by 2.

Thus, \((121)^2\) is an odd number.



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