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Question
Find a wrong number in the series: 7, 28, 63, 124, 215, 342, 511
Find a wrong number in the series: 7, 28, 63, 124, 215, 342, 511
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Solution
The correct option is B 28
Clearly , the correct sequence is:
23−1, 33−1, 43−1, 53−1, 63−1, 73−1, 83−1.
33−1.
i.e. Hence, the answer is (b)
Clearly , the correct sequence is:
23−1, 33−1, 43−1, 53−1, 63−1, 73−1, 83−1.
33−1.
i.e. Hence, the answer is (b)
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