I don’t think I can, tbh.
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14 Comments
In the maths question, the question setter did not make the sum solvable, because it needed a pair of brackets around two consecutive numbers in order to make it possible to solve the sum correctly and unambiguously!
I’ll explain the two possible solutions when a pair of brackets is inserted to make the sum clear:
1. 2y = (4 + 3) x 2
This means that 2y = 7 x 2, which is 14.
Therefore, if 2y = 14, y = 7
2. 2y = 4 + (3 x 2)
This means that 2y = 4 + 6, which is 10.
Therefore, if 2y = 10, y = 5
Written WITHOUT a pair of brackets around two adjacent digits, we have TWO equally possible answers, meaning that ‘y’ could equally well be 7 OR 5!
So, the setter needs to know about the use of brackets, and must apply them in order for the maths problem to work! I have to assume that the person who set this maths problem is NOT a mathematician!
P.S. I use the word ‘maths’ rather than ‘math’ as I’m British!
I got 11 out of 20!
You did fine! You know some stuff, and you don’t know some stuff. All in all, it was an educating and delightful quiz experience so I say that’s good!
I got 16 out of 20!
Wow! There is nothing stopping you! This quiz tried hard, but you plowed it over with your majestic and all-knowing brain!
15/20
11/20 55% Not great, took ages to complete, had to keep coming back to it, not been feeling well, lots of family stress and busy no time much for quizzing lately, will keep on trying hopefully made of tough stuff, us baby boomer generation!!
16/20. Happy enough with that.
I got 12 out of 20 – 60%
You did fine! You know some stuff, and you don’t know some stuff. All in all, it was an educating and delightful quiz experience so I say that’s good!
30 / 7 / 25
I believe you have published the wrong answer to the question:-
If 2y = 4 + 3 x 2 what is y?
The correct answer is surely 7? Please explain how if it is not!
Thank you
The order of mathematical operations is PEMDAS, which is parentheses, exponents, multiplication, division, addition, and finally, subtraction. Therefore, you have to do the multiplication before the addition.
I did pretty good I got 11/20 right
I got 18 out of 20!
Wow! There is nothing stopping you! This quiz tried hard, but you plowed it over with your majestic and all-knowing brain!
Not bad..
5/20 👍🏻
10/20
20/20
Wow! There is nothing stopping you! This quiz tried hard, but you plowed it over with your majestic and all-knowing brain!