Question : Directions: Select the number that will replace the question mark (?) in the following series. 78, 93, ?, 153, 198, 253
Option 1: 119
Option 2: 111
Option 3: 127
Option 4: 118
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Correct Answer: 118
Solution : Given: 78, 93, ?, 153, 198, 253
The pattern is as follows – 78 + 15 = 93; 93 + 25 = 118; 118 + 35 = 153; 153 + 45 = 198; 198 + 55 = 253
So, the missing number in the series is 118. Hence, the fourth option is correct.
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