Mathematics · Mensuration
Rahul made 45 conical pen stands (open at the top) of the same size, each with a base radius of 5 cm and height √3 times the radius, using a certain amount of cardboard. How many cylindrical pen stands (with a base and open at the top) can he make using the exact same amount of cardboard, if each cylindrical stand has a radius of 2 cm and a height of 6.5 cm?
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