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Question
Divide the clock face into three parts so that the sum of the numbers in each part is the same.
Answer in Brief
Solution
There are multiple ways of arranging numbers 1-12 into 3 sets such that sum of each set is equal. On could be : 1-6-7-12, 2-5-8-11, 3-4-9-10.
- Sum of numbers from 1-12 is 78.
- If we have to divide them into 3 sets with equal sum then sum of each set would be `78/3` = 26.
- Hence, another possible combination would be 1-2-11-12, 3-4-9-10, 5-6-7-8
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