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11 May, 11:26

Which pair of ratios form a proportion?

A.

3 : 4 and 4 : 5

B.

10 : 12 and 16 : 18

C.

7 : 10 and 10 : 14

D.

5 : 8 and 20 : 32

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Answers (2)
  1. 11 May, 11:51
    0
    It would be D. 5:8 and 20:32

    Because 5 is to 20 [4x's] and 8 is to 32 [4x's]
  2. 11 May, 14:04
    0
    D. if you rake the beginning ratio 5:8 and multiply the ratio by 4 you get 20:32. i believe this is the proper way to solve.
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