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Question
In each of the following questions , one term is wrong. Find out the wrong term.17, 18, 22, 31, 46, 72
17, 18, 22, 31, 46, 72
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Solution
The correct option is D 46
The difference of two successive term is 1, 4, 9, 16, 25, etc. But difference between 31 and 46 is 15 (not sixteen). The right number should have 47.
The difference of two successive term is 1, 4, 9, 16, 25, etc. But difference between 31 and 46 is 15 (not sixteen). The right number should have 47.
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