How to Score 99 Percentile in CAT 2019 ?

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Pythagoras & Apollonius Theorems

Admit Card: 23 Oct '19 - 24 Nov '19

Year by year CAT aspirants face surprises and going by previous year trends, CAT 2019 might also give you some new surprises hence, a solution to handle toughness of CAT is that you should practice with relevant questions with solution. 

Please attempt following question and apply solution for practice: 

There are two concentric circles of radii 7 cm and 8 cm. PQ, a diameter of the larger circle, cuts the smaller circle at S and T. A tangent drawn from Q touches the inner circle at R. What is the length of PR (in cm)?

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