Question : Directions: Which of the following four options will replace the question mark (?) in the following series? 8, 16, ?, 38, 41, 82
Option 1: 21
Option 2: 31
Option 3: 28
Option 4: 19
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Correct Answer: 19
Solution : Given: 8, 16, ?, 38, 41, 82
Multiply the numbers by 2 and add 3 alternatively to get the next number in the series – 8 × 2 = 16; 16 + 3 = 19; 19 × 2 = 38; 38 + 3 = 41; 41 × 2 = 82
So, 19 is the missing number of the series. Hence the fourth option is correct.
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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 3: 44
Option 4: 52
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 four options can replace the question mark (?) in the following series? 66, 87, 110, ?, 162, 191
Option 1: 120
Option 2: 125
Option 3: 146
Option 4: 135
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
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