Question

the square of which of the following would be odd number 431​

Answer 1

Step-by-step explanation:

(i) 431 : The square of 431 ends in 1. So, its an odd number.

(ii) 2826 : The square of 2826 ends in 6. So, its an even number.

(iii) 7779 : The square of 7779 ends in 1. So, its an odd number.

(iv) 82004 : The square of 82004 ends in 6. So, its an even number.

Also as we know that the square of any even digit will also be the even and square of any odd digit will also be the odd hence,

The squares of 431 and 7779 would be an odd number.