What is the seventh term of following series: 2, 9, 28, 65, 126

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08 Oct 2018 Series What is the seventh term of following series: 2, 9, 28, 65, 126: OPtion
1) 216
2) 217
3) 330
4) 236
5) 335
6) 344
7) 345
8) 239
9) 234
10) None of these; Correct Option: 6 Best Solution (4)

G.S.Kantharao 6 years AGO

2*1,3*3,4*7,5*13,6*21,7*31,8*43
Hence 7th term is 344.
My option is 6👈

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Shanjay Sundar . D 6 years AGO

nth term = n ^3+1
1=1^3+1=2
2=2^3+1=9
3=3^3+1=28
4=4^3+1=65
5=5^3+1=126
6=6^3+1=217
7=7^3+1=344

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SAYAN CHATTERJEE 6 years AGO

2, 9, 28, 65, 126, 217.
7, 19, 37, 61, 91, 127
12,. 18, 24, 30, 36
So, the seventh term will be (126+91)+127= 344.
Option 6.

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ARINJOY GHOSH 6 years AGO

t1=1+1^3
t2=1+2^3=9
t3=1+3^3=28
t4=1+4^3=65
t5=1+5^3=126
t6=1+6^3=217
t7=1+7^3=344
tn=1+n^3
Ans. option 6

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Dimple

India

Punjab

Time: 00:01:33

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