QUOTE(M Kashif Nisar @ Mar 27 2008, 05:43 AM) [snapback]2792969[/snapback]
humm
koshish achi hay
laikin sirf add hi karna hay 5 numbers ko
(aur koi sign use nahin karna)
dear kashifmeri kal usman se baat hui thi iss riddle pe,,, jab usuf bhai ka jawab aa chuka tha,,, aur usman ko bhi iss pe aitraz tha,,,, ke usuf bhai ne multiply kya hey, mera nuqta-e-nazar yeah tha ke 5 addad odd numbers ko add ker ke yeah kaam nahin kiya ja sakta,, iss liye usuf bhai ka jawab theek hey.
logically odd+odd =even (if u add odd numbers in even quantity)
and odd+odd+odd= odd (if u add odd numbers in odd quantity)
as we have to choose 5 odd numbers (odd quantity),,, so its answer will always be odd,,,, and u will never get sum in any even number
However if u do some maths, like usuf bhai did by multiplying 2 numbers before and adding three other numbers,,, makin total quantity of 4 numbers i.e., even quantity,,, so u can get a answer in even number,,,, in which u tricked that u reduced quantity to an even number. Similar type of different set can be made witha sum of 50, and u can do it also by dividing 2 numbers and adding 3 more numbers like;
(15/3)+9+17+19 or
(15/3)+11+15+19 etc