There are 8 billiard balls, and one of them is slightly
heavier, but the only way to tell was by putting it on a
weighing scale against another. What's the fewest number of
times you'd have to use the scale to find the heavier ball?

Answers were Sorted based on User's Feedback



There are 8 billiard balls, and one of them is slightly heavier, but the only way to tell was by pu..

Answer / mahesh t

first take 6 balls from 8 balls

from those 6 divide 3 and 3 check it in weighing scale if it
equals weight remaining 2 balls and you get the hevier
ball....of not equals take the 3 balls which is hevier from
those weighing with 6 balls then take 2 balls from those 3
balls and weight if equals the remaining one is hevier


and final you can know the hevier ball within 2 times

Is This Answer Correct ?    8 Yes 0 No

There are 8 billiard balls, and one of them is slightly heavier, but the only way to tell was by pu..

Answer / s.venmathi

3

Is This Answer Correct ?    10 Yes 3 No

There are 8 billiard balls, and one of them is slightly heavier, but the only way to tell was by pu..

Answer / manoj pandya

3

Is This Answer Correct ?    9 Yes 3 No

There are 8 billiard balls, and one of them is slightly heavier, but the only way to tell was by pu..

Answer / anli

2

Is This Answer Correct ?    8 Yes 5 No

There are 8 billiard balls, and one of them is slightly heavier, but the only way to tell was by pu..

Answer / anil parihar

4

Is This Answer Correct ?    1 Yes 6 No

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