1.

p,q and r are three positive numbers and Q=(p q r)/2; If (Q-p):(Q-q):(Q-r) = 2:5:7, then find the ratio of p,q and r ?

A. 4:3:7
B. 12:9:7
C. 9:7:4
D. 4:3:2
Answer» C. 9:7:4


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