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MATHS WEEK KICKS off this weekend and as is our annual tradition here, we’re setting you a puzzle a day with all answers published on the site next Sunday.
Get puzzling!
TODAY’S Q:
A consortium proposes a new motorway network around the Island of Ireland. The network is shown in the diagram which also shows the distances between each node (in km ). The consortium claims that it will be possible to start in Dublin and visit all cities and towns shown in the diagram and return to Dublin and only have to drive 1000km. Is that possible? If so, how? If not , why not?
All answers will be published on TheJournal.ie next Sunday morning.
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At this moment there is no diagram?
If it’s a foreign consortium then Yes, if the consortium is Irish then No and the road will come in twice over the initial budget.
A diagram would help
it wouldn’t be possible tomorrow in those headwinds.
And the diagram is where exactly?
Dublin-Belfast-Sligo-Athlone-Galway-Cork-Waterford-Dublin
@Gerard Riney: same as mine in reverse :-)
@Gerard Riney: That’s great but you didn’t show your working. Since there’s an outer ring, that’s the shortest way to connect all nodes except Athlone, and it’s 945km. So it’s possible if, and only if, there is a route from one outer node to the next, which is no more than 55km longer via Athlone than going directly. And there is exactly one (Sligo Athlone Galway).
@Marc Wilson: you were supposed to start in Dublin
I can’t delete this it’s late.
I like the way they left Limerick out… nice
DUB-BEL-SLI-ATH-GAL-CORK-W/FORD-DUB
165+190+105+90+170+115+165=1000
@Mark o’ Leary: Surely CRK and WTF?
Not for the first 6 years until they build online services.
@Ben McArthur: bet they will toll it as well
Dublin to
Waterford, Cork, Galway, Athlone, Sligo, Belfast, Dublin.
This isn’t a match puzzle – unless addition is puzzling.
@Alan Rossiter: doh….maths.
Ah comon man, where’s Limerick on the diagram kid? Dats the discriminationnnnnnnnnn!
QUE??
Fairly straight forward hire a plane & a pilot or get a taxi no driving much there. Wasn’t great at maths but know how to avoid driving
Yes. Dublin, Belfast, Sligo, Athlone, Galway, Cork, Waterford, Dublin. 1000km.
Yup got the same in reverse. 1000km. Quite by accident on first go. A little disappointing
have your say