Question
Which of the following could be a perfect square?
Answer: Option A
:
A
Perfect squares cannot have 2, 3, 7 or 8in their unit's place.
In the given options only 1681 does not endwith a number other than these.
The perfect squares of numbers ending in 1 and 9 have 1 at their unit's place.
Thus, 1681 could be a perfect square of an integer ending with either 1 or 9.
Was this answer helpful ?
:
A
Perfect squares cannot have 2, 3, 7 or 8in their unit's place.
In the given options only 1681 does not endwith a number other than these.
The perfect squares of numbers ending in 1 and 9 have 1 at their unit's place.
Thus, 1681 could be a perfect square of an integer ending with either 1 or 9.
Was this answer helpful ?
More Questions on This Topic :
Latest Videos
Latest Test Papers
Submit Solution