Mathematics
Which of the following numbers will not have 1 (one) at their unit's place ?
(i) 322
(ii) 572
(iii) 692
(iv) 3212
(v) 2652
Sq & Sq Roots
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Answer
According to the property of square number, if a number has 1 or 9 in its unit's place, then square of this number always has 1 at its unit place.
Hence, (i) 322, (ii) 572 and (v) 2652 will not have 1 at their unit's place.
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