A very very very easy question
Logic
Level
pending
you are having 9 identical balls 8 of same mass and 1 is heavier.you are provided with a common balance.what is the minimum no of uses of common balance to find which is heavier mass.
5
3
2
4
This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try
refreshing the page, (b) enabling javascript if it is disabled on your browser and,
finally, (c)
loading the
non-javascript version of this page
. We're sorry about the hassle.
1 solution
MINIMUM, WE HAVE TO USE IT FOR TWO TIMES. FIRST PLACE 3 BALLS ON ONE PLATE AND 3 BALLS ON OTHER PLATE. IF ONE SIDE IS HEAVIER TAKE THOSE 3 BALLS AND KEEP 1 BALL ON ONE PLATE AND 1 BALL ON OTHER PLATE.YOU CAN FIND WHICH IS HEAVIER.IF BOTH ARE SAME THEN 3RD ONE WILL BE HEAVIER.IF THE PLATES ARE BALANCED WHEN U KEEP 3 AND 3 THEN TAKE ANOTHER 3 BALLS AND DO THE SAME PROCESS.