Property: If a number has a square root in N, then its unit digit must be 0, 1, 4, 5 or 9.
Units digit of square: | 0 | 1 | 4 | 5 | 6 | 9 |
Units digit of square root: | 0 | 1 or 9 | 2 or 8 | 5 | 4 or 6 | 3 or 7 |
What will be the unit digit in the squares of 126 , 1278 and 124589 respectively ? | |||
Right Option : A | |||
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What will be the "one's digit" in the square of 1234? | |||
Right Option : A | |||
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The unit digit of the square of 1230 is _________________
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Right Option : C | |||
View Explanation |
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A marvelous experience with Abhyas. I am glad to share that my ward has achieved more than enough at the Ambala ABHYAS centre. Years have passed on and more and more he has gained. May the centre flourish and develop day by day by the grace of God.
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