Math, asked by navyamohal, 6 hours ago

2 / 5 :a:: 3 / 7 : 4 / 9

Answers

Answered by subbummanyam3

1

Step-by-step explanation:

product of means= product of extreams

2/5×3/7=a×4/9

6/35=4a/9

6/35×9/4=a

54/140

27/70

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