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1. What is the third term in the proportion 14 : 42 = 15 : 45?




a.

45



b.

15



c.

42

2. What are the means in the proportion 14 : 15 = 42 : 45?



a.
15 and 42


b.
14 and 42


c.
14 and 45

3. What are the extremes in the proportion 14 : 42 = 15 : 45?



a.
42 and 45


b.
42 and 15


c.
14 and 45

4. Tell whether the given ratios are proportion or not.

3 : 5 = 9 : 15




a.
Proportion


b.
Not Proportion