Relations and Functions

Relations and Functions

Question

In a group of students, 100 students know Hindi, 50 know English and 25 know both the languages. Find the number of students in the group if

(a) each student knows at least one of the two languages.

(b) 15 students in the group do not know any of the two languages.

Answer

sollution not provided
Ans.(a) 125 (b) 140

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