When x is subtracted from each of 43, 38, 11 and 10, the numbers so ob – McqOptions

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1.	When x is subtracted from each of 43, 38, 11 and 10, the numbers so obtained in this order, are in proportion. What is the mean proportional between (5x + 1) and (7x + 4)?
A.	28
B.	15
C.	20
D.	12
Answer» D. 12

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