Hi all,
More IQ questions for you to solve!
Question:
1. You have 8 balls. 7 balls are of the same weight,
shape, colour, and texture except...
2. One ball is heavier, everything else cetera peribus as
above.
3. You have 2 weighs. Calibrated and everything is identical to
the dot.
4. You only have 2 tries with the weighs to tell find out
the heavier ball.
How?
Note:
1. Some guys might be overly distressed knowing that they have
eight balls. Please treat this hypothetically.
2. You cannot use other tools except for those mentioned
above.Thank you.
Haha I know this one.
1) Firstly, split 6 balls into two parts (3 each).
2) Weigh the 6 balls, 3 on each side.
Assumption 1:
If one side is actually heavier then the other, that means that
the heavy ball is in one of those 3 balls on the heavier side. Now,
take out all the balls and weigh 2 out of 3 of those balls. If you
get one side heavier than the other, good for you cuz you got the
answer. If both side is equal, the remaining ball out of the 3 that
was not weighed is the heavy one.
Assumption 2:
If you weigh the 6 balls and both sides are equal in weight,
that means that the heavy ball is in the remaining 2 not weighed.
Now all you have to do is to weigh the 2 and find out which one is
heavier.
A simpler way of explaining is to imagine that you are given 3
apples (1 heavier than the other 2) and you are supposed to find
out which one is heavier (for this, 1 try on the weighing machine
is already enough). You only got to weigh 2 of them. If both sides
are equal that means the remaining one not weighed is the heavy
one.