Question

which of 105², 216², 333² and 111² would end with digit 1 ?​

Answer 1

Answer:

111 square

hope it helpful for you

Answer 2

Answer: $111^{2}$

Step-by-step explanation:

• Given,$105^{2}, 216^{2},333^{2}\ and \ 111^{2}$.
• To know the unit digit of the above numbers we need to find square of the unit digit and then check which number has unit digit 1.
• $105^{2}$ whose unit digit is 5 and its square will be 25 so it will have unit digit 5.
• $216^{2}$ whose unit digit is 6 and its square will be 36 so it will have unit digit 6.
• $333^{2}$ whose unit digit is 3 and its square will be 9 so it will have unit digit 9.
• $111^{2}$ whose unit digit is 1 and its square will be 1 so it will have unit digit 1.
• Hence,$111^{2}$ is the number which will end with unit digit 1.