Exams › SSC CGL (Prelims) › General
Identify the missing number following the same pattern: 7 : 13 :: 16 : 31 :: 46 : ?
- 81
- 83
- 91
- 97
Correct answer: 91
Solution
The rule is: right = 2 x left - 1. So 7x2-1=13, 16x2-1=31, 46x2-1=91. The missing number is 91.
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