Brain Teasers
Like Oil and Water
Imagine two jugs, the first containing one litre of oil, the second containing one litre of water. Ten millilitres is poured from the first jug into the second, and then ten millilitres is poured from the second jug into the first.
Which of the jugs now contains more of the liquid from the other jug? (Is there more oil in the second jug, or water in the first jug?)
Which of the jugs now contains more of the liquid from the other jug? (Is there more oil in the second jug, or water in the first jug?)
Hint
Look at the category - this is not a Science teaser! It doesn't matter whether or not oil floats on water...Answer
The first jug always ends up with the same amount of water as the second jug has oil.It doesn't matter whether more water or oil is transferred the second time. At the end, the total volume in each jug is the same, and the total volume of each liquid is the same. All that has happened is a certain (unknown) amount of oil from the first jug has been swapped with the same amount of water from the second jug.
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Comments
so they wiegh the same????
Um, no, the whole teaser is talking about volume. Mass (or weight) is not discussed. I thought that was clear enough, but maybe I should add the word "volume" after "more" in the last paragraph?
That's cool!
I got the answer correct but based it on the assumtion that the second transfer would be either all oil or all water (which it wouldn't)... It actually works no matter what the mix!!
I got the answer correct but based it on the assumtion that the second transfer would be either all oil or all water (which it wouldn't)... It actually works no matter what the mix!!
That's cool!
I got the answer correct but based it on the assumtion that the second transfer would be either all oil or all water (which it wouldn't)... It actually works no matter what the mix!!
I got the answer correct but based it on the assumtion that the second transfer would be either all oil or all water (which it wouldn't)... It actually works no matter what the mix!!
But what about spillages!!!
I liked it!
I liked it!
Thanks guys
I like it, I have to admit it took me some time to visualize. It almost would be harder if you had picked two liquids with the same density, though, because you wouldn't get people choosing right for the wrong reason (if that makes sense).
i loved that one plus i got it hooray!!!
its in my fav's i clearly got it no need to make anything clearer than what it already is !!
great teaser!i loved how your hint was so well !!!
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