Question 50

In the following question, select the missing number from the given series.
17, 31, 47, 65, ?

Solution

17+14 = 31

31+16 = 47

47+18 = 65

65+20 = 85

So 85 is the missing number in place of the question mark.

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In the following question, select the missing number from the given series.17, 31, 47, 65, ?