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Byju's Answer
Standard XII
Mathematics
Summation by Sigma Method
4, 9, 25, 49,...
Question
4, 9, 25, 49, ....
A
64
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B
81
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C
121
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D
125
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Solution
The correct option is
D
121
Squre on prime number 2, 3, 5, 7, 11 etc Next number is 121
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Similar questions
Q.
1, 9, 25, 49, 81, ?
Q.
1, 9, 25, 49, ?, 121
Q.
Given set : (49, 25, 9)
Q.
What is the H.C.F. of
4
×
27
×
3125
,
8
×
9
×
25
×
7
,
16
×
81
×
5
×
11
×
49
?
Q.
The H.C.F. of 4
×
27
×
3125, 8
×
9
×
25
×
7 & 16
×
81
×
5
×
11
×
49 is ____.
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