Of three positive numbers, the ratio of ﬁrst and second is 3 : 4, th – McqOptions

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1.	Of three positive numbers, the ratio of ﬁrst and second is 3 : 4, that of second and third is 5 : 6 and the product of second and third is 4320. What is the sum of the three numbers?
A.	531
B.	177
C.	405
D.	117
Answer» C. 405

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