SOLUTION: How many metal doorstops 15 cm by 10 cm by 5 cm can be cast from a spherical ball of metal of diameter 400 mm?

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Question 1163442: How many metal doorstops 15 cm by 10 cm by 5 cm can be cast from a spherical ball of metal of diameter 400 mm?
Answer by ikleyn(52786)   (Show Source): You can put this solution on YOUR website!
.

First, calculate the volume of a sphere with the radius r = 20 cm  V = , in cubic centimeters.


Next calculate the value under the question  .


Last step is to round to the smaller closest integer number.


Happy calculations (!)



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