Out of 150 patients visiting a hospital 60 are suffering from high blood-pressure, 40 are suffering from heart problems and 20 are suffering from both. The number of patients who suffer from none of these two problems is:

🎲 Try a Random Question  |  Total Questions in Quiz: 134  |  🧠 Study this quiz with Flashcards
This question is part of a full practice quiz:
UPPSC Previous Year Papers 2005 — practice the complete quiz, review flashcards, or try a random question.


Out of 150 patients visiting a hospital 60 are suffering from high blood-pressure, 40 are suffering from heart problems and 20 are suffering from both. The number of patients who suffer from none of these two problems is:






ADVERTISEMENT