Question 11 Mark
From a rectangular solid of metal $42\ cm$ by $30\ cm$ by $20\ cm$, a conical cavity of diameter $14\ cm$ and depth $24\ cm$ is drilled out. Find: the weight of the material drilled out if it weighs $7\ gm$ $per\ cm^3$.
Answer
View full question & answer→Weight of material drilled out
$=1232 \times 7\ g = 8624\ g = 8.624\ kg$
$=1232 \times 7\ g = 8624\ g = 8.624\ kg$