Latest CAT Aptitude Question SOLUTION: There is nine ball of same co lour same size but one ball have less weight then other eight ball in how many attempt you will distinguish that ball.

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(#M40001226) CAT question Keep an EYE

There is nine ball of same co lour same size but one ball have less weight then other eight ball in how many attempt you will distinguish that ball.

Asked In CAT S. Singh (13 years ago)

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suchandra raavi  (13 years ago)

You divide nine balls into 3,3,3. Weigh any of the set. If a set is found less weight, you can get the 3 balls. If they weigh same, you get get the 3 balls from 3rd set. Again same process in those final 3 balls. So total 2 times. Or simply get the total balls as the power of 3. The power will be the ans Its 3^2. 2 is ans.

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sandeep verma  (13 years ago)

2 time
suppose a bag has 3 ball b has 3 ball and c has 3 ball
measure a and b the u got three those bag who has defected ball
then again devided in to 1 1 1 first two measure u see ur foud ur answer
ie 2

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Jai  (12 years ago)

2 ATTEMPTS

NINE BALLS CAN BE SPLIT INTO 3 3 3. TAKE ANY 2 SETS AND WEIGH THEM. IF THEY BOTH ARE EQUAL THE THIRD SET HAS A LESS WEIGHT BALL. OTHERWISE ONE THE SELECTED WILL HAVE.
NOW TAKE THE SET WHICH HAS A LESS WEIGHT BALL. SPLIT IT INTO 1 1 1. WEIGH ANY TWO OF THEM. IN THE SAME WAY WE CAN FIND OF THESE THREE.

THUS 2 ATTEMPTS (3,3,3 .... 1,1,1)

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Browns MN  (12 years ago)

5!!!
1st take 4 and 4
then take greater set and now try this individual 4 balls wit that 1 remainin ball...

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