Question

Three of the following four numbers are alike in a certain way and one is different. Pick the number that is different from the rest .

A 9178 Correct Answer Incorrect Answer
B 7158 Correct Answer Incorrect Answer
C 5138 Correct Answer Incorrect Answer
D 3128 Correct Answer Incorrect Answer

Solution

The pattern is A-78+13=91 B-58+13=71 C-38+13=51 D-28+13=41 but 31 is given so this is different.

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