Q 1: The cost of 10 bicycles is $200 and the cost of 20 bicycle is $400. Write this in proportion. 20:10 :: 200:400 10:20 :: 200:400 20:200 :: 10:400 10:400 :: 20:200

Q 2: 8 days and 2 weeks -- write the numbers as a ratio. 8:2 8:14 2:8 14:8

Q 3: Find the mean proportional for 5 and 405. 30 45 205 9

Q 4: In 1:20 :: 5:100, what are the extremes? 20 and 100 20 and 5 1 and 100 1 and 5

Q 5: The distance d that an object will fall freely from rest varies directly as the square of the time(t^{2}) it falls. If an object falls 122.5 m in 5 seconds, how far will it fall in 18 seconds? 1932.6 m 1587.6 m 158.6 m 2145.3 m

Q 6: The ratio of 6 hrs to 180 minutes is 6:3. True False

Q 7: Find the missing quantity of the proportion 7:10 :: ___:50 21 35 42 25

Q 8: 75:25 __?__ 3:1 < = >

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