Question

Choose odd one out
1.4578
2.2397
3.9732
4.3729
Answer is 4578 but anybody can explain how this answer came what relation all other entity possess.

Answer 1

Hi,


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I got the logic behind the answer

4578 = 4+5+7+8 = 24
2397 = 2+3+9+7 = 21
9732 = 9+7+3+2 = 21
3729 = 3+7+2+9 = 21

So 2397, 9732,3729 have a common sum = 21 but 4578 has a sum = 24 so it is the odd one out
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Very happy to solve this on my own ^_____^

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Hope it helps