Your contributions will help us continue to deliver the stories that are important to you
Image: Shutterstock/racorn
Image: Shutterstock/racorn
THIS HAS BEEN Maths Week and if you’ve clicked in here, you are likely to have been puzzling over our fiendish maths challenges on TheJournal.ie all week.
So let’s not delay further: these are the answers you’ve been waiting for.
Let us know how you did in the comments…
Saturday: The One With The Questions To Test Your Skills
The answers:
1) 24
2) €12
3) €2
4) 15 mins
5) 3 for the price of 2
6) 24
7) 16
8) Glass of wine (24 ml of alcohol)
9) 12.775 kg of sugar
10) 30 mins
Sunday: The One About The New Road Network Around Ireland
Answer: It is possible to start in Dublin and visit all the cities and towns shown in the diagram and only have to drive 1000km.
The method:
If you drive the following routes, you will travel 1000km between Dublin and the cities and towns.
- Dublin – Belfast: 165km
- Belfast – Sligo: 190km
- Sligo – Athlone: 105km
- Athlone – Galway: 90km
- Galway – Cork: 170km
- Cork – Waterford: 115km
- Waterford – Dublin: 165km
TOTAL: 1000km
Monday: No puzzle today because of Storm Ophelia
Tuesday: The One With The Pentominos
The answer: Pentimonos (a), (b), (c), (d), (e), (h), (i) can be folded into an open box
Wednesday: The One Where You Had To Get To 24 And 23 Using 2,4,6,8 And The Common Operators
The answer: There are several ways of getting a total of 24. Here is one:
(2×6)/4×8=24
Getting to 23 is much harder:
(6 -2/8)×4=23
Here’s how that breaks down: (6 -2/8)×4=(6-1/4)×4=(5 3/4)×4=23
Getting 1000 from 8,8,8,8,8,8,8,8, is trickier because it requires a bit of a trick:
888+88+8+8+8=1000
Thursday: The One That Involved Moving The Lions and Tigers
The answer: The shortest number of steps to get the animals into the correct cages is 16 moves
Friday: The One Where You Had To Figure Out How Much Money Was In The Bag
The answer: The amount of money in the bag is €300. Twenty €5 notes, ten €10 notes and five €20 notes.
Saturday: The One With The Gamble On The Euro Coins
The answer: It is not generous of you. It gives you twice the chance of winning. The possible outcomes are:
COMMENTS (7)