Question : Directions: Which of the following four options will replace the question mark (?) in the following series? 12, 36, ?, 102, 100, 300
Option 1: 68
Option 2: 34
Option 3: 52
Option 4: 76
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Correct Answer: 34
Solution : Given: 12, 36, ?, 102, 100, 300
Multiply by 3 and subtract 2 alternatively to get the next term of the series – 12 × 3 = 36; 36 – 2 = 34; 34 × 3 = 102; 102 – 2 = 100; 100 × 3 = 300
So, 34 is the missing number. Hence, the second option is correct.
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Question : Directions: Which of the following four options will replace the question mark (?) in the following series? 48, 68, ?, 138, 188, 208
Option 1: 118
Option 2: 88
Option 3: 128
Option 4: 108
Question : Directions: Which of the following four options will replace the question mark (?) in the following series? 9, 45, ?, 540, 1080
Option 1: 180
Option 2: 240
Option 3: 300
Option 4: 360
Question : Directions: Which number from among the given options can replace the question mark (?) in the following series? 6, 12, ?, 32, 36, 72
Option 1: 24
Option 2: 21
Option 3: 16
Option 4: 18
Question : Directions: Which of the following numbers will replace the question mark (?) in the given series to make it logically complete? 12, ?, 68, 194, 572, 1706
Option 1: 32
Option 2: 36
Option 3: 26
Option 4: 20
Question : Directions: Which number from among the given options can replace the question mark (?) in the following series? 4, 16, 13, ?, 49, 196
Option 1: 38
Option 2: 31
Option 3: 44
Option 4: 52
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