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Odd numbers don't add up to give you an even number.
It is possible only in case of factorial.



1 5 1
Ummm, okay!
Thanks anyway!
Someone has solved this question before. I tried it myself to come to a conclusion that there is always 1 less or 1 extra number in the answer. I found this question in a question paper for upsc.
Hi keerthika u have explained for 5 blocks but i got a question like solve this _ + _ + _ = 30
Use the digits
1, 3, 5, 7, 9, 11, 13, 15
You can also repeat the digits.
I have tried in many ways but i cudn found that can u able help me ?
This sum cannot be done because Odd + Odd = Even, Odd + Odd + Odd = Odd, All the numbers which are given are odd. Thus we can use four numbers to get the number. For eg 7+3+9+11=30
1 5 1