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CUET
General Test
Quantitative Reasoning
Geometry
Find the number of common tangents, if $r_1 + r_2 = C_1.C_2. $ (With usual notations, $ r_1 \& r_2 $ and $C_1 \& C_2$ are the radii and centres of the two circles.)
1
0
3
4
⇒ There are three common tangents.