Latest Patni Aptitude Question SOLUTION: You have only 1 kg weight. You have to weight 31kg. Min number of measurements you have to done

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You have only 1 kg weight. You have to weight 31kg. Min number of measurements you have to done

Asked In Patni (12 years ago)

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Shiv Kumar  (12 years ago)

You can do it in 5 steps.
1,2,4,8,16
Asume stone as S (Left Side) weight of 1kg as T (Right Side)
Move 1T to the same side as S and, Left Side is S+1T, Now weight 2T
Move 2T to the same side as S and, against S+3T, Now weight 4T
Move 4T to the same side as S and, against S+7T, weight 8T
Move 8T to the same side as S and, against S+15T, weight on right Side is 16T

15R + 16R = 31R.

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Prerna  (12 years ago)

1 kg ..1kg ........ 2 kg weight is available now..... weighed 1 kg till now.
2kg .. 2 kg ........4 kg wt is available now........weighed 3 kg till now.
4 kg .. 4 kg .........8 kg ............................7 kg
8kg ... 8 kg ......... 16 kg ..........................15 kg weighed till now.
16 kg .. 16 kg ........ 32 kg available ...............31 kg weighed till now.

so minimum 5 measurements are to be made.

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