Let x be the mean proportional between 25.6 and 32.4 and y be the thir – McqOptions

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1.	Let x be the mean proportional between 25.6 and 32.4 and y be the third proportional to 32 and 48. Then 3x : 2y = _______.
A.	4 : 5
B.	5 : 3
C.	3 : 5
D.	5 : 4
Answer» D. 5 : 4

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