what is the no series of
2,6___,61,121
Answers
Answered by
5
Answer:
a=2
d=4
an=121
an=a+n-1d
121=2+n-1×4
121-2=4n-4
119=4n-4
119+4=4n
123=4n
n=123/4
n=30.75
Answered by
46
Answer:
21
Step-by-step explanation
2x5-4 =6
6x4-3=21
21x3-2=61
61x2-1=121
Look at the series so u will get ans as 21
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