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प्रश्न
How many lead shots each 3 mm in diameter can be made from a cuboid of dimensions 9 cm × 11 cm × 12 cm ?
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उत्तर
We have,
Radius of a lead short, `r = 3/2 = 1.5 "mm" = 0.15 "cm" and`
Dimensions of the cuboid are 9 cm × 11 cm × 12 cm
The number of the lead shorts `="Volume of the cuboid"/"Volume of a lead shot"`
`=(9xx11xx12)/(4/3xx22/7xx0.15xx0.15)`
= 84000
So, the number of lead shots that can be made from the cuboid is 84000.
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