Question

Find out the wrong number in the following given series:

7                 6                    45                  40                  312                   304

A 40 Correct Answer Incorrect Answer
B 304 Correct Answer Incorrect Answer
C 312 Correct Answer Incorrect Answer
D 45 Correct Answer Incorrect Answer
E 6 Correct Answer Incorrect Answer

Solution

7 × 1³ - 1 = 6 6 × 2³ - 3 = 45 45 × 1³ - 5 = 40 40 × 2³ - 7 = 313 313 × 1³ - 9 = 304

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