Question : Directions: In the following question a series is given, with one number missing. Choose the correct alternative from the given ones that will complete the series. 1, 6, 15, ?, 45, 66
Option 1: 26
Option 2: 24
Option 3: 28
Option 4: 23
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Correct Answer: 28
Solution : Given: 1, 6, 15, ?, 45, 66
Add the numbers with the difference of 4 to the previous term to obtain the next term. 1 + 5 = 6; 6 + (5 + 4) = 6 + 9 = 15; 15 + (9 + 4) = 15 + 13 = 28; 28 + (13 + 4) = 28 + 17 = 45; 45 + (17 + 4) = 45 + 21 = 66
So, 28 is the missing number in the given series. Hence, the third option is correct.
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Question : Direction: 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.
36, 34, 30, 28, 24, ?
Option 1: 20
Option 2: 26
Option 3: 22
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. 8, 15, 28, 53, ?
Option 1: 106
Option 2: 100
Option 3: 108
Option 4: 102
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. 6, 10, 18, 34, ?, 130
Option 1: 78
Option 2: 52
Option 3: 66
Option 4: 94
4, 6, 10, 16, 24, ?
Option 1: 40
Option 2: 28
Option 3: 30
Option 4: 34
Question : Directions: In the following question, a series is given, with one number missing. Choose the correct alternative from the given ones that will complete the series. 21, 26, 33, 42, 53, ?
Option 1: 56
Option 2: 63
Option 4: 69
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