Which of the following will have 6 at unit place?*a) Square of 12b) Square of 14c) Square of 22d) Square of 18
Question
Which of the following will have 6 at unit place?
- a) Square of 12
- b) Square of 14
- c) Square of 22
- d) Square of 18
Solution
To find out which of the following will have 6 at the unit place, we need to square the last digit of each number.
a) Square of 12: The last digit is 2. 2^2 = 4. So, the unit place will not be 6.
b) Square of 14: The last digit is 4. 4^2 = 16. So, the unit place will be 6.
c) Square of 22: The last digit is 2. 2^2 = 4. So, the unit place will not be 6.
d) Square of 18: The last digit is 8. 8^2 = 64. So, the unit place will not be 6.
Therefore, the square of 14 will have 6 at the unit place.
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