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In a class, 30% of the students are from Dhaka District and 20% of them from Dhaka city. What percent of the total students are from Dhaka city?

In a class, 30% of the students are from Dhaka District and 20% of them from Dhaka city. What percent of the total students are from Dhaka city? Correct Answer 6

Here, students from Dhaka District = 30% of the total students  Students from Dhaka city = 20% of the students from Dhaka District = 20% of (30% of the total students) = 20/100 × 30% of the total students = 6% of the total students

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