BDMO REGIONAL 2015

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Joined: Mon Jan 23, 2017 10:32 am

BDMO REGIONAL 2015

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NOBODY
Posts: 2
Joined: Sat Feb 04, 2017 8:34 pm

Re: BDMO REGIONAL 2015

2 ,
118 AND 8

Absur Khan Siam
Posts: 65
Joined: Tue Dec 08, 2015 4:25 pm
Location: Bashaboo , Dhaka

Re: BDMO REGIONAL 2015

Solution:
Note that there exists a number for each number such that the sum is \$126\$,except \$2\$.Thus if we take
\$14\$ number,we can ensure that the sum of any two number is \$126\$.
"(To Ptolemy I) There is no 'royal road' to geometry." - Euclid

SMMamun
Posts: 57
Joined: Thu Jan 20, 2011 6:57 pm

Re: BDMO REGIONAL 2015

How did you find 14 number(s)? Did you rather mean 24? How can you find the sum 126 if you take one of the numbers to be 3?

Anyway, the phrase "the sum of any two among them" is ambiguous and does not seem to clarify what the question setters actually asked for.

Absur Khan Siam
Posts: 65
Joined: Tue Dec 08, 2015 4:25 pm
Location: Bashaboo , Dhaka

Re: BDMO REGIONAL 2015

I think the statement should be "There exists a pair such
that the sum is \$126\$"
"(To Ptolemy I) There is no 'royal road' to geometry." - Euclid