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Q 2403201148.     A round archery target of diameter 1 m is marked with four scoring regions from the centre outwards as red, blue, yellow and white. The radius of the red band is 0.20 m. The width of all the remaining bands is equal. If archers throw arrows towards the target, what is the probability that the arrows fall in the red region of the archery target?
IAS 2016 Prelims
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)