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You have 8 tablets (medicine)with you one of them is poison tablet its having more weight then other 7 tablets u have a beam balance u can use it only 2

time how u will know about that tablet.


Each time you weigh 4 tablets.
the set which weighs more has the poisonous tablet.
hence the set which weighs less has tablets that arent poisonous.

so we have to compare the tablet from the set that has a poisonous tablet with any tablet from the other set.
the tablet that weighs more is the poisonous tablet.
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