RRB NTPC · Venn Diagrams · Quiz
5 real RRB NTPC questions on Venn Diagrams. Instant scoring and solutions, no signup — see where you stand in ~3 minutes.
Question 1 of 5
HARDIn a group of 250 students, 140 study Mathematics, 120 study Physics, 100 study Chemistry, 60 study both Mathematics and Physics, 50 study both Physics and Chemistry, 55 study both Mathematics and Chemistry, and 30 study all three subjects. How many students study none of the three subjects?