Of three positive numbers, the ratio of first and second is 5 ∶ 6 an – McqOptions

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1.	Of three positive numbers, the ratio of first and second is 5 ∶ 6 and that of second and third is 9 ∶ 1. The product of first and third number is 480. What is the sum of the three numbers?
A.	140
B.	160
C.	150
D.	170
Answer» B. 160

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