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How many shots each having diameter 3 cm can be made form a cuboidal lead solid of dimensions `9 cm xx 11 cm xx 12 cm`? |
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Answer» Given , dimesion of cuboidal `= 9 cm xx 11 cm xx 12 cm` `therefore ` Volume of cuboidal `= 9 xx 11 xx 12 = 1188cm^(3)` and diameter of short = 3 cm `therefore` " "Radius of shot , `r= (3)/(2) = 1.5 cm` " "volume of shot `= (4)/(3)pir^(3) = (4)/(3) xx (22)/(7) xx (1.5)^(3)` ` " "= (297)/(21) = 14.143 cm^(3)` `therefore ` Required number of shots `= (1188)/( 14.143) = 84` (approx)` |
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