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प्रश्न
Find the compounded ratio of: 4 : 5, 5 : 7 and 9 : 11
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उत्तर
4 : 5, 5 : 7 and 9 : 11
Compound ratio
= `(4)/(5) xx (5)/(7) xx (9)/(11)`
= `(36)/(77)`
or
36: 77.
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