Practice question
Question
A survey of 450 students about their subjects of interest resulted in the following outcome. . 150 students are interested in Mathematics. . 200 students are interested in Physics. . 175 students are interested in Chemistry. . 50 students are interested in Mathematics and Physics. . 60 students are interested in Physics and Chemistry. . 40 students are interested in Mathematics and Chemistry. . 30 students are interested in Mathematics, Physics and Chemistry. . Remaining students are interested in Humanities. Based on the above information, the number of students interested in Humanities is
Explanation
The principle of molecular bonding explains that hybridization and orbital overlap dictate geometry and reactivity. Hence 45 fits best because it satisfies bonding and stability criteria, as documented in authoritative sources on chemistry.
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