Ronny owns a rice field in Baguio. He hired tractors to plough his field. He hired 8 tractors who finished ploughing within 3 days. When the 8 tractors work together, each of them ploughs 120 ha per day. If the two of the tractors were moved to another field, then the remaining 6 tractors could plough the same field in 4 days. How many ha a day would one tractor plough then?

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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Ronny owns a rice field in Baguio. He hired tractors to plough his field. He hired 8
tractors who finished ploughing within 3 days. When the 8 tractors work together, each
of them ploughs 120 ha per day. If the two of the tractors were moved to another field,
then the remaining 6 tractors could plough the same field in 4 days. How many ha a
day would one tractor plough then?
Transcribed Image Text:Ronny owns a rice field in Baguio. He hired tractors to plough his field. He hired 8 tractors who finished ploughing within 3 days. When the 8 tractors work together, each of them ploughs 120 ha per day. If the two of the tractors were moved to another field, then the remaining 6 tractors could plough the same field in 4 days. How many ha a day would one tractor plough then?
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