Question : Directions: Which number will replace the question mark (?) in the given series?
115,107, 98, 88, 77, 65,?
Option 1: 52
Option 2: 50
Option 3: 61
Option 4: 57
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Correct Answer: 52
Solution :
Given:
115,107, 98, 88, 77, 65,?
Subtract the natural number in increasing order starting from 8, to get the required missing number –
115 – 8 = 107; 107 – 9 = 98; 98 – 10 = 88; 88 – 11 = 77; 77 – 12 = 65; 65 – 13 = 52
So, the required missing number in the series is 52. Hence, the first option is correct.
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