Question

Find the missing number in the following number series:

7      8       ?       13       17        22      28

A 12 Correct Answer Incorrect Answer
B 11 Correct Answer Incorrect Answer
C 10 Correct Answer Incorrect Answer
D 9 Correct Answer Incorrect Answer
E None of these Correct Answer Incorrect Answer

Solution

7 + 1 = 8 8 + 2 =  10 10 + 3 = 13 13 + 4 = 17 17 + 5 = 22 22 + 6 = 28

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