Which one of the following diagrams properly represents the relationship among 'Body', 'Ear', 'Mouth' ? (See figure for the four diagrams.)

Exclusive Proposition: Which is the correct option? All students are not genius.

In a party of 150 persons, 75 persons take tea, 60 persons take coffee and 50 persons take milk. 15 of them take both tea and coffee, but no one taking milk takes tea. If each person in the party tak…

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?

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 55 students, 34 like to play Cricket and 26 like to play Badminton. Also, each student likes to play at least one of the two games. How many students like to play both Cricket and Badmi…