Question
Three of the following four number-pairs are alike in a
certain way and one is different. Find the odd one out.Solution
1. 45 : 9 → 4 + 5 = 9 2. 29 : 11 → 2 + 9 = 11 3. 67 : 13 → 6 + 7 = 13 4. 89 : 15 → 8 + 9 = 17
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