The ratio of three numbers is 2 ∶ 5 ∶ 7. If their product is 189 – McqOptions

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1.	The ratio of three numbers is 2 ∶ 5 ∶ 7. If their product is 1890, then what is the sum of the three numbers?
A.	82
B.	140
C.	42
D.	72
Answer» D. 72

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