When x is subtracted from each of 19, 28, 55 and 91, the numbers so ob – McqOptions

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1.	When x is subtracted from each of 19, 28, 55 and 91, the numbers so obtained in this order, are in proportion. What is the mean proportional between (x + 9) and x2?
A.	27
B.	32
C.	28
D.	24
Answer» D. 24

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