Find the next element that replace the ? Logically 990, 1321, 1718, 2187, ?
2734
The series is 990, 1321, 1718, 2187, ? and we must find the next term.
First find the consecutive differences between the terms.
\(1321 - 990 = 331\), \(1718 - 1321 = 397\), \(2187 - 1718 = 469\).
Now examine how these differences 331, 397, 469 themselves change.
\(397 - 331 = 66\) and \(469 - 397 = 72\); these second differences increase by 6 each time.
So the next second difference is \(72 + 6 = 78\), making the next first difference \(469 + 78 = 547\).
Add this to the last term: \(2187 + 547 = 2734\).
So the missing term is 2734, which matches the fourth option.
Hence the correct answer is 2734.
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Important Questions from Number Based
In the following question, four number pairs are given. The number on left side of (-) is related to the number of the right side of (-) with some Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.
Select the set in which the numbers are related in the same way as are the number of the following set.
(3, 7, 58)
Find the odd number/letters from the given alternatives.
Find the odd number/letters from the given alternatives.
Identify the number which is different from the other.
