Question

In a certain country 1/2 of 5 = 3. If the same proportion holds, what is the value of 1/3 of 10 ?

Answer 1

@imqwerty just a riddle xD

Answer 2

uhh mhmm

(5 * 2) - 2 = 3

so

(10 * 3) - 3 = 27

so would 1/3 of 10 b 27? .-.

Answer 3

nope..good try.. xD

Answer 4

4?

Hmm this is strange :d

Answer 5

Lol,u got the answer..
btw,can u show ur working pls ? ^_^

Answer 6

or is it

(1/2 * 5) + 1/2 = 2.5 + 0.5 = 3

(1/3 * 10) + 1/3 = 10/3 + 1/3 = 11/3 which is 3.6667

Answer 7

\[\large\rm \frac{\frac12of~5}{\frac13of~10}=\frac{3}{x}\]And then just cross multiply.
I feel like I shouldn't be allowed to do that though in this weird country >.<
Because if 1/2 of 5 is 3,
then the normal rules of multiplication shouldn't hold.

I guess I'm overthinking it lolol

Answer 8

nice try @TheSmartOne but the answer is 4..
let's hear how @zepdrix got that answer..

Answer 9

2

Answer 10

\[\large\rm \frac{5}{2}x=\frac{10}{3}\cdot3\]And then I did some division multiplication stuffs... :p

Answer 11

nice.. :P
here is another working..

Answer 12

that looked so confusing (and I'm not in the mood to understand what it's trying to do) that I like zeppy's way better xD

Answer 13

Hmm neato :D

Answer 14

I don't understand this step mhmm
http://prntscr.com/c2aquw

Answer 15

that's what i'm thinking too @TheSmartOne.. :P
didn't know there is another solution for that problem..Thanks to @zepdrix
maths problem--> a lot of solution can be used to solve that particular question..
Thank you @zepdrix @TheSmartOne ^_^

Answer 16

\(\color{#0cbb34}{\text{Originally Posted by}}\) @TheSmartOne
I don't understand this step mhmm
http://prntscr.com/c2aquw
\(\color{#0cbb34}{\text{End of Quote}}\)
What's wrong there?

Answer 17

ohhh, they simplified the fraction from 2/6

Nevermind, I got it xD

Answer 18

xD

Answer 19

1/2 * 5 = 3
5 = 6
10 = 12
1/3 * 12 = 4

Answer 20

so 1/3 of 10 = 4

Answer 21

But their answer seems flawed, imo

sometimes they do this

(like they did in the first second step)

and then they do this in the last 2 steps