Question : Directions: Which number will replace the question mark (?) to complete the given series?
2, 5, 10, 17, 26, 37, 50, ?
Option 1: 67
Option 2: 61
Option 3: 63
Option 4: 65
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Correct Answer: 65
Solution :
Given:
2, 5, 10, 17, 26, 37, 50, ?
In the above-given series, add consecutive odd numbers from 3 onwards to the previous number to obtain the next number –
2 + 3 = 5; 5 + 5 = 10; 10 + 7 = 17; 17 + 9 = 26; 26 + 11 = 37; 37 + 13 = 50; 50 + 15 = 65
So, 65 is the missing number. Hence, the fourth option is correct.
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