In a group of 400 people, 250 can speak Hindi and 200 can speak English. How many people can speak both Hindi and English?

Let C denote the set of people who like coffee, and T denote the set of people who like tea  n(C ∪ T) = 70, n(C) = 37, n(T) = 52  We...

Let C denote the set of people who like cricket, and T denote the set of people who like tennis  ∴ n(C ∪ T) = 65, n(C) = 40, n(C ∩...

Let F be the set of people in the committee who speak French,  and S be the set of people in the committee who speak Spanish  ∴ n(F) = 50, n(S) =...

Let U be the set of all students in the group.  Let E be the set of all students who know English.  Let H be the set of all students who know...

Let H be the set of people who speak Hindi, and E be the set of people who speak English ∴ n(H ∪ E) = 400, n(H) = 250, n(E) =...

Let C denote the set of people who like coffee, and T denote the set of people who like tea n(C ∪ T) = 70, n(C) = 37, n(T) = 52...

Let C denote the set of people who like cricket, and T denote the set of people who like tennis ∴ n(C ∪ T) = 65, n(C) = 40, n(C ∩...

Let F be the set of people in the committee who speak French, and S be the set of people in the committee who speak Spanish ∴ n(F) = 50, n(S) =...

Let U be the set of all students in the group. Let E be the set of all students who know English. Let H be the set of all students who know...

Mrs. BATES—an Idol of Kindness and Generosity  It was midnight, a woman with a large bag moving alone on the streets of New York. Mrs. Bates was physically well built, independent...