What 3 odd integers native the set 1,3,5,7,9,11,13,15 that once summed together amounts to to 30? note that any integer have the right to be used more than once.

You are watching: Sum of three odd numbers is 30

Is there any type of possibility to fix these sort of questions with part formulae? keep in mind I have actually gone with the answers for making it with 5 numbers.


*

Note the all the aspects of the set are odd.

Hence, also if us repeat, us have, w.l.o.g, the adhering to cases

(i) weird $x$ + odd $x$ + odd $y$ = Even+Odd=Odd

(ii) odd $x$ + strange $y$ + odd $z$ = Odd

(iii) weird $x$ + odd $x$ + strange $x$ = Even+Odd=Odd

.... If $30$ is even.

I actually remember this concern which is rumored to it is in from an IAS exam and no one might solve it except the topper. That"s in reality a false rumor.

See more: How Many Feet Is 7 Meters To Feet, What Is 7 Meters In Feet

The only means you can acquire $30$ is by doing that in a chrischona2015.orgematically incorrect means (by a "trick"), prefer $7.5+9.5+13=30$

Other 보다 that, this question just is a bogus question.


re-publishing
cite
follow
edited Jun 12 "20 in ~ 10:38
*

CommunityBot
1
answered Apr 9 "15 in ~ 13:31
*

Prasun BiswasPrasun Biswas
5,94611 gold badge1414 silver badges3131 bronze badges
$endgroup$
include a comment |

Not the price you're looking for? Browse other questions tagged summation puzzle integers or asking your own question.


Upcoming occasions
Featured ~ above Meta
Linked
14
What 5 odd integers have a amount of $30$?
-1
Interesting question in internet
-4
problem of arithmetic
associated
7
uncover all integers n such the the quadratic $5x^2 + nx – 13$ have the right to be expressed together the product of two linear determinants with integer coefficients.
1
problems on number
1
methods for finding top bound for alternate sum (big oh)
1
Distance in between multisets the integers
6
Prove that $0!+1! + 2! + 3! + ..... + n!$ $ eq$ $p^ extr$, wherein $n geqslant 3$ and $n$, $p$ and also $r$ are three integers
4
Minimum number of steps in water measure trouble
1
construct a team of every integers such that all facets have order 3 except identity
1
Integers native 2-11 in a irregular net of 10 squares
warm Network questions an ext hot questions
*

chrischona2015.orgematics
agency
stack Exchange Network

site style / logo © 2021 stack Exchange Inc; user contributions license is granted under cc by-sa. Rev2021.11.23.40817


chrischona2015.orgematics ridge Exchange works best with JavaScript allowed
*

her privacy

By clicking “Accept all cookies”, you agree ridge Exchange have the right to store cookie on your an equipment and disclose information in accordance v our Cookie Policy.