Question

Find the missing number in the following number series:

5 6 15 40 89 170 ?

A 290 Correct Answer Incorrect Answer
B 291 Correct Answer Incorrect Answer
C 292 Correct Answer Incorrect Answer
D 293 Correct Answer Incorrect Answer
E None of these Correct Answer Incorrect Answer

Solution

5 + 12= 6 6 + 32= 15 15 + 52= 40 40 + 72= 89 89 + 92= 170 170 + 112= 291

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