GMAT TIGER wrote:
You have 4 jars of pills. Each pill is a certain weight, except for contaminated pills contained in one jar, where each pill is weight + 1. How could you tell which jar had the contaminated pills in just one measurement?
each pill weight =w
contaminated pill weight=w+1
Take different no of pills from 4 jackets.
from Jar1 1 pill
from Jar 2 2 pills
from Jar 3 3 pills
from Jar 4 4
weight total pills = w+2w+3w+4w + x (x-- contaminated pills extra weight)
once you measured the weight.. find x
if x=1 -- first jar
if x=2 second jar
if x=3 third jar.
if x=4 4th jar.
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