A doctor in Michigan has a sister who lives in California but the sister does not have any brother that lives in Michigan, how come??
:P

Brilliantly done, Republican! I admire your logic! :)

Yes, the same night I thought I solved the riddle, I asked one of my friends if she could solve it, and when trying to explain how it could be solved, I found I was mistaken myself. Yes, until third step, it works okay, then it doesn't.

Well, you did it, now I don't see the necessity of doing it another way, if there is. Also, I am still confused what is the necessity of 43L jar; any big jar just works fine, innit?

I even haven't read the other question posted by you; I will try to do it if it is interesting. :)

juggy, the containers are not full but the amount of milk in A and water in B are equal.

hetterika, you could be right : ) i'd like to see the logic behind it though, that's the interesting part, isn't it?

slackdemic, i think the 43L is just to throw you off a little.. maybe the solution would be easier if it was any other amount. Or if the question said "any big jar", you'd probably be able to find the answer sooner.

if the containers contained exaclty a cupfull of liquid, the concentration of the milk will be equal in both containers but if the volume was more than a cupfull, the concentration of the milk will be more in the container which contained milk initally when the process was started.

12 – 12 = 12 – 12
(1 + 1) (1 – 1) = (1 – 1)
(1 + 1) = 1
2 = 1
Why is it not possible?

they r not 12, 1 raised to power 2, 1^2

the concentration of milk in A would be greater because you are mixing some milk (that went from A to B, and taking a part of it back to A) to a lower amount in A.

so what i think is if you are talking about the amount, it would be tha same as in your question but if it is to do with the concentration, there would be a difference (the other way round in your question).

just a try hai.

ritthe
in your third line, you cannot have 1 on your RHS

ratamakai,

(1 - 1) in both sides cancel each other thats why 1 there.

Doctor in Michigan has a sister in california, sister means nurse. But the sister has no brother. Doctor is not her brother. Simple.

no (1-1) is 0 and you cannot cancel two zeros,
a zero canceled (or divided lets say) by another zero is never 1

yes you got it ratamakai.

substitute (1-1) by a, Then

(1+1)a = a

(1+1) = 1

2 = 1

Can be solved.......but the question itself is 0 = 0.

You can't write (1-1) for 1^2. It should be 2-1.

(1^2 - 1^2) = 1 - 1
I don't see any mistakes slackdemic, 1^2 = 1 rt?

Okay,

1^2 - 1^2 = 1^2 - 1^2

(1-1) = (1-1)

Now, how the heck did you get (1+1) on LHS..........???

This had been quite a story when I was in class 8. It took me quite a while to know where something was wrong. In case you wanted to refresh yourself with class 7-8 mathematics.

Q. Prove 2=3.

Sol. -6 = -6
=> 4 - 10 = 9 - 15
=> 4 - 10 + 25/4 = 9 - 15 + 25/4
=> 2^2 - 2x2x(5/2) + (5/2)^2 = 3^2 - 2x3x(5/2) + (5/2)^2
=> (2 - 5/2)^2 = (3 - 5/2)^2
=> 2 - 5/2 = 3 - 5/2
=> 2 = 3 //Proved//

:-)

a^2 - b^2 = (a + b) (a - b)
from formula ....... nuke

can u take square root of negative number ??? doesn't it become imaginary number ? I have never seen this one, i had seen yhe one I posted in school days. If I am wrong what is the answer galaab? Good one.

There are three people and they are blindfolded. Now, the are given one cap each, two red caps and one black cap, which they wear, unware what color it is. However, they are told that either they have a black cap or a red cap and they can see two other's cap once the blindfold is removed. Also, they are told that once the blindfold is removed, and if they see any red cap, they will have raise their hand.

Now they open their eyes. One can't see what one is wearing, but can see two other's cap. One of the people their would be able to tell "I am wearing red cap!" logically. How?

Here it is wrong --->

(4-5)/2 = (6-5)/2

-1/2 = -1/2

1 = 1

Solved //