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In a group of students, 100 students kn...

In a group of students, 100 students know Hindi, 50 know English and 25 know both. Each of the students knows either Hindi or English. How many students are there in the group?

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To solve the problem, we will use the principle of set theory, specifically the formula for the union of two sets. ### Step-by-Step Solution: 1. **Identify the Given Information:** - Let \( H \) be the set of students who know Hindi. - Let \( E \) be the set of students who know English. - The number of students who know Hindi, \( |H| = 100 \). ...
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