Question 66
Two circles touch each other externally. The distance between their centres is 8 cm. If the radius of one circle is 3 cm, then the radius of the other circle is:
Solution
Two circles touch externally at point D as shown in figure
Radius of smaller circle = BD = 3 cm
Distance between the centres of the circles = 8 cm
$$\Rightarrow$$ AB = 8
$$\Rightarrow$$ AD + BD = 8
$$\Rightarrow$$ AD + 3 = 8
$$\Rightarrow$$ AD = 5 cm
$$\therefore\ $$Radius of other circle = AD = 5 cm
Hence, the correct answer is Option A
Create a FREE account and get:
- Free SSC Study Material - 18000 Questions
- 230+ SSC previous papers with solutions PDF
- 100+ SSC Online Tests for Free
CAT Quant Questions | CAT Quantitative Ability
CAT Averages QuestionsCAT Number Systems QuestionsCAT Venn Diagrams QuestionsCAT Remainders QuestionsCAT Averages Mixtures Alligations Questions
CAT DILR Questions | LRDI Questions For CAT
CAT Quant Based DI QuestionsCAT Puzzles QuestionsCAT Data Interpretation Basics QuestionsCAT DI with connected data sets QuestionsCAT Maxima-Minima Questions
