Y8 Exam Check - Ch6 Ratios and Rates

6A. A sample of mixed nuts contains 5 cashews, 12 peanuts and 2 macadamia nuts. Write down the ratio of peanuts to other nuts.

(a)  

6A. State the missing number in the equivalence .

$$30\ :\ 15\ =\ ?\ :\ 5$$  

(a)  

6B: Simplify $$450\ :\ 200\$$  

(a)  

6B: Simplify $$2\frac{1}{3}\ :\ 1\frac{1}{4}$$  

(a)  

6B. Write the relationship ‘25 minutes to 2 hours’ as a ratio by first changing the quantities to the same unit.

(a)  

6C. Divide 54 m in a ratio of $$4\ :\ 5$$  

The smaller part is ?

(a)  

6C.  Divide $300 in the ratio of 2 : 1 : 3. The largest part is ?

(a)  

6C. The ratio of boys to girls at Birdsville College is 2 : 3. If there are 246 boys at the school, how many students attend Birdsville College?

(a)  

6D. A map has a scale of 1 : 20 000. Find the actual distance for a scale distance of 5 mm. Answer in metres.

(a)  

6D. A model boat has a scale of 1 : 500. Find the scaled length for an actual length of 75 cm. Answer in millimetres.

(a)