Question : Directions: In the following question a series is given, with one number missing. select the missing number from the given alternatives. 120, 119, 115, 106, 90, ?
Option 1: 75
Option 2: 65
Option 3: 77
Option 4: 62
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Correct Answer: 65
Solution : Given: 120, 119, 115, 106, 90, ?
Subtract the squares of the consecutive natural numbers from the previous term to get the next term in the series. 120 – (1)2 = 120 – 1 = 119; 119 – (2)2 = 119 – 4 = 115; 115 – (3)2 = 115 – 9 = 106; 106 – (4)2 = 106 – 16 = 90; 90 – (5)2 = 90 – 25 = 65
So, 65 is the missing term in the series. Hence, the second option is correct.
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Question : Directions: In the following question, select the missing number of the given series. 115, 117, 119, 121, 123, ?
Option 1: 125
Option 2: 131
Option 3: 127
Option 4: 124
Question : Directions: In the following question, select the missing number of the given series. 94, 105, 92, 107, 90, ?
Option 1: 115
Option 2: 110
Option 3: 122
Option 4: 109
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
Question : Directions: In the following question a series is given, with one number missing. Select the missing number from the given alternatives. 104, 52, 26, 13, 6.5, ?
Option 1: 3.5
Option 2: 3.75
Option 3: 4.25
Option 4: 3.25
Question : Directions: In the following question, select the missing number of the given series. 49, 68, 87, ?, 125
Option 1: 107
Option 2: 106
Option 3: 104
Option 4: 108
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