# If 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 j?

Weigh the following:

Given a normal pill weighs x and contaminated pill weighs x+1

4 pills from jar 1

3 pills from jar 2

2 pills from jar 3

1 pill from jar 4

Total weight if all normal: 10x

If total weight is:

10x+4 then jar 1 is contaminated

10x+3 then jar 2 is contaminated

10x+2 then jar 3 is contaminated

10x+1 then jar 4 is contaminated

### Weight variation of tablets?

The weight variation test is performed by taking few tablets from the batch and finding out their average weight, say 'x'.then individual tablets are weighed and deviation or % deviation from average weight is determined. There is certain acceptable range for the tablets falling in the certain weight ranges.