Question : Directions: Which of the following numbers will replace the question mark (?) in the given series? 33, 80, 108, ?, 183, 230, 258
Option 1: 160
Option 2: 155
Option 3: 143
Option 4: 138
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Correct Answer: 155
Solution : Given: 33, 80, 108, ?, 183, 230, 258
In the above-given series, add 47 and 28 alternatively to the numbers. 33 + 47 = 80; 80 + 28 = 108; 108 + 47 = 155; 155 + 28 = 183; 183 + 47 = 230; 230 + 28 = 258
So, 155 is the missing number. Hence, the second option is correct.
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