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A solid cylindrical block of radius 1...

A solid cylindrical block of radius 12 cm and height 18 cm is mounted with a conical block of radius 12 cm and height 5 cm. The total lateral surface of the solid thus formed is (a) 528 cm2 (b) `1357 5/7c m^2` (c) 1848 cm2 (d) None of these

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