The ratio of third proportional of P and Q and fourth proportional of P, Q and R is 7 : 11. Find the value of Q/R.
Solution
Correct Answer: Option B
Third proportional to P and Q = Q2/P
Fourth proportional to P, Q and R = QR/P
⇒ (Q2/P)/(QR/P) = 7/11
⇒ Q/R = 7/11
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