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The number of coins, each of radius 0.75 cm and thickness 0.2 rightcm, to be melted to make aright circular cylinder

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The number of coins, each of radius 0.75 cm and thickness 0.2 rightcm, to be melted to make aright circular cylinder of height 8 cm and base radius 3 cm is 

A. 460 

B. 500 

C. 600 

D. 640

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1 Answer

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Best answer

Total number of coins = \(\frac{Volume\, of \,cylinder}{Volume\, of \,each\,coin }\)

= 640

Hence, option D is correct

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