Can YOU solve this McDonald's maths puzzle? Brainteaser that has left the internet baffled is harder than it looks
- The fiendish test asks you to solve an equation based on three sums provided
- Many people were caught out by the number of items in the final sum
- And others struggled to remember the order to do multilplication and addition
It involves just three favourite items from the McDonalds menu, but this maths puzzle has left people on Facebook scratching their heads.
The fiendish test asks you to solve an equation based on three sums provided.
The key to solving the puzzle lies in remembering the fundamental rules in maths about the order to do multiplication and addition in.
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It involves just three favourite items from the McDonalds menu, but this maths puzzle has left people on Facebook scratching their heads. The fiendish test asks you to solve an equation based on three sums provided
The tricky puzzle was posted on Facebook by Butuan, Philippines-based Keril, along with the caption: '98 per cent fails. Share first, only for geniuses, answer fast if you are a genius.'
So far over 1,500 people have attempted to solve the puzzle, with varying results.
The first line of the challenge shows that three McDonald's drinks add to a value of 30.
Next, you are told that two burgers and one drink total 20.
Finally, four portions of chips and one burger add up to nine.
The last line asks you to use the information provided to answer how much one burger and one portion of chips multiplied by a drink is worth.
Some challengers struggled as they did not notice that the third sum involved two portions of chips, while the fourth line only had one.
And others were confused about the order in which to multiply and add in the final line.
To work out the answer, you firstly need to understand the cost of each product.
From the first line, you can tell that each drink is worth 10, while on the second line you can decipher that a burger is worth five.
On the third line – remembering that there is a total of four packet of chips – you can see that each packet of chips is worth one.
Rusty did not notice that the fourth sum only involved one portion of chips, and mixed up the order of multiplication and addition, suggesting an answer of 70
Some challengers struggled as they did not notice that the third sum involved two portions of chips, while the fourth line only had one
Others took a more comical approach, such as Jesse Quinn who said: 'McValue Lunch is the answer'
Finally, applying the rule that multiplication comes before addition, you can multiply the chips by the drink, totalling 10, before adding the burger, giving the answer 15.
Last year, a similarly tricky maths question aimed at year 2 pupils involved figuring out how many passengers were originally on a train.
The question read: 'There were some people on a train. 19 people get off the train at the first stop. 17 people get on the train. Now there are 63 people on the train. How many people were on the train to begin with?'
Mother Louise Bloxham shared the test on Twitter as she couldn't believe the tough teaser was aimed at children as young as six, and her followers were certainly left confused as they battled to figure out the correct answer.
A maths question aimed at year 2 pupils which involves figuring out how many passengers were originally on a train is the latest brain teaser to leave the internet confused
Louise Bloxham shared the test on Twitter as she couldn't believe the tough teaser was aimed at children as young as five. Some of her followers figured out that the correct answer was 65
Neil Hughes and Robyn Duckworth insisted the answer was definitely 65 as did Lewis Haddow who worked it out using algebra: X - 19 + 17 = 63. X = 65.'
He added: That's quite hard for Year 2.'
But Louise confused things further by explaining someone had posted the answer on a Facebook forum for teachers saying it was definitely 46.
'You ignore the 19 - they are a red herring presumably. So 63 - 17 = 46.'
The correct answer is in fact 65, which you arrive at by subtracting the 17 people who just boarded from the current number of passengers, 63, to get 46. Then you add the 19 passengers who got off to arrive at 65.
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