Sequence of the millenium !!!!!!!

Algebra Level 5

The sequence is 3, 1, 32, _ , 324, 108 Q. Find the missing term (4th term)


The answer is 18.

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Anshuman Padhi by Anshuman Padhi , 23, India

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1 solution

Anshuman Padhi
Oct 29, 2014

The series is 1^3 + 2, 2^2 -3, 3^3+5, 5^2 -7, ........ So, taking successive prime nos. with alternate cubes and squares with alternate addition and subtaction of successive prime no.

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if you follow this series is 1^3 + 2, 2^2 -3, 3^3+5, 5^2 -7, ........ taking successive prime nos. with alternate cubes and squares with alternate addition and subtraction of successive prime no.
so how can you prove (base on this solution) that 324 is the 5th term? because if you continue your solution the answer is 354 (7^3+11), if you continue... (11^2-13) the answer is 108,,,,, so therefore i conclude that the given 324 is wrong, so 18 is wrong also

Carl Francis Ibanez - 6 years, 7 months ago

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