A solid metallic cylinder of height 10 cm and radius 6 cm is melted to – McqOptions

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1.	A solid metallic cylinder of height 10 cm and radius 6 cm is melted to make two cones in the ratio of volume 1 : 2 and of same height as 10 cm. What is the percentage increase in the flat surface area?
A.	25%
B.	50%
C.	75%
D.	100%
Answer» C. 75%

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