Question : Directions: In the given series one number is incorrect. Identify the INCORRECT number from among the options given. 3, 5, 7, 6, 10, 14, 12, 24, 28, 24, 40, 56
Option 1: 10
Option 2: 24
Option 3: 12
Option 4: 28
Correct Answer: 24
Solution : Given: 3, 5, 7, 6, 10, 14, 12, 24, 28, 24, 40, 56
Split the series into three parts. (I) 3, 6, 12, 24 (II) 5, 10, 24, 40 (III) 7, 14, 28, 56 In all the series above the following number is double of the preceding number. ⇒ 3 + 3 = 6; 6 + 6 = 12; 12 + 12 = 24 ⇒ 5 + 5 = 10; 10 + 10 = 20; 20 + 20 = 40 ⇒ 7 + 7 = 14; 14 + 14 = 28; 28 + 28 = 56 In series (II) it is written 24 instead of 20.
So, 24 in the second series is the wrong number. Hence, the second option is correct.
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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. 2, 3, 5, 6, 7, 9, 10, 11, 13, ?
Option 1: 12
Option 2: 15
Option 3: 14
Option 4: 16
Question : Directions: In the following question a series is given, with one number missing. Select the missing number from the given series. 283, 94, 31, 10, ?
Option 1: 3
Option 2: 4
Option 3: 5
Option 4: 7
Question : Directions: Select the number from among the given options that can replace the question mark (?) in the following series. 10, 15, 19, 22, ?, 25
Option 1: 24
Option 2: 20
Option 3: 27
Option 4: 23
Question : Directions: Which number will replace the question mark (?) in the following number series? 52, 42, 34, 28,?
Option 2: 22
Option 3: 26
Question : Directions: In the following question, select the related number from the given alternatives. 18 : 5 :: 12 : ?
Option 1: 4
Option 2: 10
Option 3: 3
Option 4: 6
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