In a school, every student offers either Hindi or English or both. 50.8% offer Hindi and 64.2% offer English. If the total number of students is 500, how many students offer both Hindi and English?

In an examination, every candidate took Hindi or History or both. 66% took Hindi and 59% took History. The total number of candidates was 3000. How many candidates took both Hindi and History?

In a school, there are 20 teachers who teach Mathematics or Physics. Of these, 12 teach Mathematics and 4 teach both Mathematics and Physics. How many teachers teach Physics?

In a class of 80 students, 60% students play carrom, 45% play chess, and 10% students neither play carrom nor chess. The number of students who play only chess is

In a club, all the members participate either in Tambola or in Rummy. 320 participate in Rummy, 350 participate in Tambola and 220 participate in both. How many members does the club have?

In a group of 25 people, 12 read French, 15 read English while 6 of them read none of these two. How many of them read French and English both?