Thi Thử SAT ONLINE - Thi Thử 30 Đề SAT - Math

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QUESTION BANK

An Internet service provider offers an internet package with a speed of 50 Mbps at a cost of 30 dollars per month. Another package offers 80 Mbps at 50 dollars per month. Assuming a linear speed-cost ratio, what is the speed, in Mbps, when the cost is 40 dollars per month?