Q 1: 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? 158.6 m 1932.6 m 1587.6 m 2145.3 m

Q 2: If a:b = 7:6 and b:c = 7:8, then find a:b:c. 48:42:49 7:6:8 42:48:49 49:42:48

Q 3: 2 hrs and 50 minutes -- write the numbers as a ratio. 120:50 50:120 2:50 50:2

Q 4: The cost of 10 bicycles is $200 and the cost of 20 bicycle is $400. Write this in proportion. 20:200 :: 10:400 20:10 :: 200:400 10:20 :: 200:400 10:400 :: 20:200

Q 5: 78:12 __?__ 19:12 < > =

Q 6: 75:25 __?__ 3:1 < > =

Q 7: Simplify the ratio: 5 inches to 10 feet (Hint: 10 feet = 120 inches) 1/20 3/17 1/24 2/15

Q 8: 7:8 :: 35:40 -- is it in proportion? Yes No

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