Aptitude - Numbers - Discussion

Discussion Forum : Numbers - General Questions (Q.No. 136)
136.
Which one of the following can't be the square of natural number ?
30976
75625
28561
143642
None of these
Answer: Option
Explanation:

The square of a natural number nerver ends in 2.

143642 is not the square of natural number.

Discussion:
5 comments Page 1 of 1.

Bajrang said:   6 years ago
Thanks @Akshay.
(2)

Adil said:   7 years ago
Thanks @Vani Varma.
(2)

AKSHAY said:   10 years ago
The numbers that have 0, 1, 4, 5, 6 or 9 in their units place may be perfect squares where as the numbers that have 2, 3, 7 or 8 in their units place are never perfect squares.
(8)

Raji said:   1 decade ago
Give any example.

Vani varma said:   1 decade ago
The square of a natural no never ends in 2, 3, 7, 8.
(3)

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