1) 15:80=9:n a) 40 b) 48 c) 50 2) 100:n=15:12 a) 80 b) 82 c) 85 3) n:20=16:10 a) 30 b) 31 c) 32 4) A machine can produce 210 yards of fabric in 9 hours. How much fabric can the machine produce in 3 hours? a) 60 b) 70 c) 80 5) A bicycle travels 85 miles in 6 hours (with a constant speed). How far will it take to travel 170 miles? a) 10 b) 12 c) 14

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