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Verbal Reasoning
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Aptitude
General Knowledge
Verbal Reasoning
Computer Science
Interview
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Numbers
(51+ 52 + 53 + ... + 100) =?
2525
2975
3225
3775
Show Answer
Correct Answer:
3775
Explanation:
This is an A.P. in which
a
= 51,
l
= 100 and
n
= 50.
∴Sum =
n
(
a
+
l
)
=
50
x (51 + 100) = (25 x 151) = 3775.
2
2
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