Question

compound ratio of 4:5,5:7 and 9:11​

Answer 1

Answer:

36 : 37

Step-by-step explanation:

Explanation is in this attachment

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Answer 2

Answer:

36:37

Step-by-step explanation:

1. 4:5 ,5:7 &9:11

= (4) (5) (9) : (5) (7) (11)

= 180 : 385

=36:77 Ans .

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