Question : Directions: In the following question, select the missing number of the given series.
0, 20, 40, 60, 80, ?
Option 1: 110
Option 2: 100
Option 3: 120
Option 4: 90
Correct Answer: 100
Solution :
Given:
0, 20, 40, 60, 80, ?
In the above-given series, add 20 to the previous number to get the next number.
0 + 20 = 20, 20 + 20 = 40, 40 + 20 = 60, 60 + 20 = 80, 80 + 20 = 100
So, 100 is the missing number of the series. Hence, the second option is correct.
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