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Question
Find the wrong number in the series
7, 28, 63, 124, 215, 342, 511
7, 28, 63, 124, 215, 342, 511
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Solution
The correct option is A 28
Here the number follows the given rule
23−1,33−1,43−1,53−1,63−1,73−1,83−1
∴33−1=26 But 28 has been given in problem series.
so 28 is wrong number.
Here the number follows the given rule
23−1,33−1,43−1,53−1,63−1,73−1,83−1
∴33−1=26 But 28 has been given in problem series.
so 28 is wrong number.
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