Question : Directions: In the following question a series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.
56, 42, 30, 20, ?, 6
Option 1: 15
Option 2: 12
Option 3: 18
Option 4: 14
Correct Answer: 12
Solution :
Given:
56, 42, 30, 20, ?, 6
Subtract consecutive even numbers in decreasing order starting from 14 to get the next number in the series.
56 – 14 = 42, 42 – 12 = 30, 30 – 10 = 20, 20 – 8 = 12, 12 – 6 = 6
So, the required missing number is 12. Hence the second option is correct.
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