Question : Directions: Which of the following numbers will replace the question mark (?) in the given series?
63, 56, 49, 42, 35, 28, ?
Option 1: 14
Option 2: 21
Option 3: 22
Option 4: 35
Correct Answer: 21
Solution :
Given:
63, 56, 49, 42, 35, 28, ?
In the above-given series, subtract 7 from the previous number to get the next number.
63 – 7 = 56; 56 – 7 = 49; 49 – 7 = 42; 42 – 7 = 35; 35 – 7 = 28; 28 – 7 = 21
So, 21 is the missing number of the series. Hence, the second option is correct.
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