There are pills in five cups for Covid19 flu. A mischievous person has inserted contaminated pills in one of the jars. The medics were perplexed how to find the jar. They however had got one clue that their good pills were weighing 14 grams whereas the contaminated pills were weighing 13 grams. Can you help them with a solution by telling which jar had the contaminated pills in just one measurement.
