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A solid toy is in the form of a right circular cylinder with hemispherical shape at one end and a cone at the other end. Their common diameter is 4.2 cm and the height of the cylinderical and conical portions are 12 cm and 7 cm respectively. Find the volume of the solid toy.
`["Use "pi=22/7]`

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The correct Answer is:
`218.064 cm^(3)`
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