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Which of the following will have ‘7’ at the unit place of its square root?*a) 113569b) 31567c) 8281d) 26813

Question

Which of the following will have ‘7’ at the unit place of its square root?

  • a) 113569
  • b) 31567
  • c) 8281
  • d) 26813
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Solution

The square root of a number ends with '7' if the number itself ends with '9'. This is because 7*7 = 49.

Let's check the options:

a) 113569 - This number ends with '9', so it's possible that its square root ends with '7'.

b) 31567 - This number ends with '7', so its square root will not end with '7'.

c) 8281 - This number ends with '1', so its square root will not end with '7'.

d) 26813 - This number ends with '3', so its square root will not end with '7'.

So, the answer is option a) 113569.

This problem has been solved

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