Question : Directions: In the following question, select the missing number from the given series.
120, 110, 101, 93, 86, ?
Option 1: 80
Option 2: 79
Option 3: 82
Option 4: 81
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Correct Answer: 80
Solution :
Given:
120, 110, 101, 93, 86, ?
Subtract the consecutive natural numbers in decreasing order (starting from 10) from each term to get the missing term in the series.
120 – 10 = 110; 110 – 9 = 101; 101 – 8 = 93; 93 – 7 = 86; 86 – 6 = 80
So, 80 is the missing term. Hence, the first option is correct.
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