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What can be placed at '?' if both side of '::' have same relationship between numbers: 85 : 42 :: 139 : ? |
68 69 70 67 |
69 |
The correct answer is Option (2) → 69 85 : 42 :: 139 : ? THE LOGIC FOLLOWED HERE IS : IIND NUMBER × 2 +1 = IST NUMBER AS 42 × 2 + 1 = IST NUMBER 84 +1 = 85 SIMILARLY X × 2 + 1 = 139 2X = 139 - 1 2X = 138 X = 69
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