The science teacher asked the students of Class-VIII to make a project report on
pollution. When 10 students work on it, the work gets finished in three days. How
many students are required so that work finishes in two days?
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Answer:
time taken by 1 person = 3 x 10 = 30 days
people required = 30 ÷ 2 = 15.
∴ it will take 15 students
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