CAT 2004
Circle Basics
Medium
Circles with Common Tangent - II
Answer the following question based on the information given below.
In the adjoining figure, I and II are circles with centres P and Q respectively. The two circles touch each other and have a common tangent that touches them at points R and S respectively. This common tangent meets the line joining P and Q at O. The diameters of I and II are in the ratio 4 : 3. It is also known that the length of PO is 28 cm.
What is the ratio of the length of PQ to that of QO?
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