Average age of students of an adult school Is 40 years. 120 new students, whose average is 32 years,….

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Average age of students of an adult school Is 40 years. 120 new students, whose average is 32 years, joined the school. As a result, the average age is decreased by 4 years. The number of students of the school, after joining of the new students, is

Options :-

1. 1200
2. 120
3. 360
4. 240

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