Question : Directions: Which number will replace the question mark (?) to complete the given series?
55, 42, 31, 22, 15, 10,?
Option 1: 7
Option 2: 5
Option 3: 3
Option 4: 6
Correct Answer: 7
Solution :
Given:
55, 42, 31, 22, 15, 10, ?
Subtract the consecutive odd numbers in decreasing order (starting from 13), to get the missing number in the series.
So, 7 is the missing term in the series. Hence, the first option is correct.
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