Question : Directions: Select the number from among the given options that can replace the question mark (?) in the following series.
5, 10, 17, 26, 37, 50, ?
Option 1: 58
Option 2: 65
Option 3: 76
Option 4: 54
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Correct Answer: 65
Solution :
Given:
5, 10, 17, 26, 37, 50, ?
In the above-given series, add the consecutive odd numbers, starting from 5 to the previous number to get the next number of the series.
5 + 5 = 10; 10 + 7 = 17; 17 + 9 = 26; 26 + 11 = 37; 37 + 13 = 50; 50 + 15 = 65
So, 65 is the missing number of the series. Hence, the second option is correct.
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