there are 27 coins in which 0ne is heavier than rest(all
equal weight).how many measurements are needed to isolate
that odd one.
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Answer Posted / dinesh
four measurement
take 13 coins(26 coins) in each hand
wt is equal then 27 th coin has heavier wt
else
take 6 coins(12 coins) in each hand-which has more wt
wt is equal then 13 th coin has heavier wt
else
take 3 coins(6 coins) in each hand-which has more wt
take 1 coins(2 coins) in each hand-which has more wt
wt is equal then 3rd coin has heavier wt
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