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Byju's Answer
Standard VIII
Mathematics
A Perfect Square Always Ends in 0,1,4,5,6,9 as Last Digit
190002 will c...
Question
(
19000
)
2
will contain how many zeroes at the end?
A
4
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B
6
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C
5
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D
3
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Solution
The correct option is
B
6
(
19
×
1000
)
2
=
19
×
19
×
1000
×
1000
=
19
×
19
×
1000000
⇒
6
z
e
r
o
e
s
OR
If a number ends with
'n'
zeroes, its square ends with
'2n' zeroes.
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