Question : Directions: Select the number from among the given options that can replace the question mark (?) in the following series. 159, 146, ?, 120, 107, 94, 81
Option 1: 136
Option 2: 131
Option 3: 133
Option 4: 140
Correct Answer: 133
Solution : Given: 159, 146, ?, 120, 107, 94, 81
Subtract 13 from each number to obtain the next number. 159 – 13 = 146; 146 – 13 = 133; 133 – 13 = 120; 120 – 13 = 107; 107 – 13 = 94; 94 – 13 = 81
So, the missing number of the series is 133. Hence, the third option is correct.
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Question : Directions: Select the number from among the given options that can replace the question mark(?) in the following series. 53, 69, 86, 104, 120, ?, 155
Option 1: 140
Option 3: 132
Option 4: 137
Question : Directions: Select the number from among the given options that can replace the question mark (?) in the following series. 39, 53, ?, 108, 149, 199
Option 1: 81
Option 2: 72
Option 3: 79
Option 4: 76
Question : Directions: Select the number from among the given options that can replace the question mark (?) in the following series. 72, 85, 68, 81, ?, 77
Option 1: 70
Option 2: 61
Option 3: 64
Option 4: 67
Question : Directions: Select the number from among the given options that can replace the question mark (?) in the following series. 112, 101, 91, ?, 74, 67
Option 2: 85
Option 3: 80
Option 4: 82
Question : Directions: Which of the following numbers will replace the question mark (?) in the given series? 98, 99, 107, ?, 198
Option 1: 154
Option 2: 148
Option 3: 146
Option 4: 134
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