Question

The digit at unit place of a square number is 2 more than the digit at unit place of that number. which of these can be the digit in the unit's place of the square of the number?

i. 1
ii. 3
iii. 5
iv. 9​

Answer 1

Answer:

9

Step-by-step explanation:

7^2 is 49

Difference between unit digit of the number and it's square = 2

Answer 2

Answer:

1)  9²=81

2) not possible

3)5² =25

4)7² = 49

Step-by-step explanation: