What is the next number of the following sequence 3/7,5/21,7/43,9/73,11/111,.........

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15 Jul 2013 Sequence

What is the next number of the following sequence
3/7,5/21,7/43,9/73,11/111,.........

OPtion

1) 13/129
2) 15/137
3) 17/147
4) 13/157
5) 19/167
6) 13/149
7) 15/177
8) 17/153
9) 13/153
10)None of these

Solution

3/3^2-2 = 3/7
5/5^2-4 = 5/21
7/7^2-6 = 7/43
9/9^2-8 = 9/73
11/11^2-10 = 11/111
13/13^2-12 = 13/157

Correct Option: 4 Best Solution (0)