Question : Directions: In the following question, a series is given with one number missing. Select the missing number from the given alternatives.
672, 666, 660, 654, ?
Option 1: 648
Option 2: 646
Option 3: 650
Option 4: 640
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Correct Answer: 648
Solution :
Given:
672, 666, 660, 654, ?
Here, subtract 6 from each number to get the next number.
672 – 6 = 666; 666 – 6 = 660; 660 – 6 = 654; 654 – 6 = 648
648 is the missing number of the series. Hence, the first option is correct.
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