Answer / ksr_mca_guys

Separate the plates into 3 groups and each group consist of 3 plates

first take 2 group of plates & place it in two pans.

if two pans are equal then the difference is in 3rd group, so take that third group plates and place any two plates in each pans if there is no diff then the rest of the plate is the ans/- or else diff shown in weighing pan

Answer / vikas

It should be stated wether the plate is heavier OR lighter
then : -
Separate the plates into 3 groups and each group consist of
3 plates

first take 2 group of plates & place it in two pans.

if two pans are equal then the difference is in 3rd group,
so take that third group plates and place any two plates in
each pans if there is no diff then the rest of the plate is
the ans/- or else diff shown in weighing pan

(ASSUMING THAT PLATE IS LIGHTER OR HEAVIER THEN ONLY WEIGHT
DIFFRENCE MAKE SENSE)

Answer / hemant joshi

hey .. the ques is wrong.. you have to specify wheather the
plate is havier or lighter.... then only it can be done
using weighing machine twice ..... or if you are not
mentioning that the odd one is heavier or lighter, means it
can either be heavier or lighter then you need to use the
machine atleast thrice..

Answer / rajeev

i think the minimum number of rounds would be 3 and not 2

Answer / shravanthy

divide into 3 plates each
weigh two groups of 3 plates each on either plate of the
balance...if the plates are in d same level it means the
plate of different weight is in the third group......so take
the third group of plates.....select any 2 and weigh
them...again if u get equal weights the different one can b
spotted easily,and if weights are unequal for sure you cab
identify too!

if the first 2 group of plates had different weights then u
can identify d plate of different weight in a group.....then
repeat the same procedure...take any 2 weigh and find out

Answer / suneel

no ans

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