For any two numbers m , n ; (m+n) : (m-n) : mn = 7: 1: 60 . Find the value of 1/

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✪ Choose the correct option.

For any two numbers m , n ; (m+n) : (m-n) : mn = 7: 1: 60 . Find the value of 1/m : 1/n

A. 4:3
B. 8:7
C. 3:4
D. 7:8

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