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Byju's Answer
Standard XII
Mathematics
Summation by Sigma Method
3 15 35 ? 99 ...
Question
3 15 35 ? 99 143
A
63
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B
69
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C
77
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D
81
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E
85
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Solution
The correct option is
A
63
The term in the series are
2
2
−
1
,
4
2
−
1
,
6
2
−
1
,
8
2
−
1
22−1,42−1,62−1,82−1
etc Hence the missing term
8
2
−
1
=
63
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0
Similar questions
Q.
3, 15, 35, 63, 99, ...
Q.
Complete the following series:
3
,
15
,
35
,
63
,
99
,
?
Q.
Find the missing number.
3
,
15
,
35
,
.
.
.
.
.
,
99
,
143.
Q.
Find the missing number:
3
,
15
,
35
,
?
,
99
,
143
Q.
Identify the term that will replace the "?"
3, 15, 35, ?, 99, 143
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