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What comes next in the sequence - 3, 13, 43, 73, ??

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What comes next in the sequence - 3, 13, 43, 73, ??
posted May 12, 2016 by Udita

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3 Answers

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The logic to this series is as follows;

2 x 2 – 1 = 4 – 1 = 3;

4 x 4 – 3 = 16 – 3 = 13;

8 x 6 – 5 = 48 – 5 = 43;

10 x 8 – 7 = 80 – 7 = 73;

Therefore we can find the answer as;

12 x 10 – 9 = 120 – 9 = 111

Missing next number = 111

answer May 12, 2016 by Hasan Raza
In third row how 8x6 came, should it be 6x6 by your logic (i.e. increment of 2 in every number)
yes sir , bs logic wahin kam nhi kr rha h, mene socha shayad ye kam kr jaye,,
0 votes

3,13,43,73,103

answer May 13, 2016 by Shiv Goel
What is the logic
han ji what is the logic
0 votes

Ans:
(3*3)+4=13
(3*13)+4=43
(3*23)+4=73
(3*33)+4=103

answer May 13, 2016 by Jaikumar Bhatia
I agree
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