If the square ends with 9, then the number has _ or _ in the units place.

3

7

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4

5

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9

1

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None of these

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Solution

The correct option is A $3$ or $7$
Only those numbers, when squared will have 9 at their unit place are $3$ and $7$ .
Because $3 \times 3$ $=$ $9$
and $7 \times 7$ $=$ $9$
Hence, Option A is correct answer.

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If a number has 1 or 9 in the unit's place, then it's square ends in

Statement 1: Square numbers can never end with 2, 3, 7 or 8.

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Which of these statement(s) is/are right?

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