CMAT 2018 Solved Question Paper

Question : 7 of 100

Marks: +1, -0

How many iron balls , each of radius 1cm , can be made from a sphere whose radius is 8 cm ?

Solution:

Number of iron balls =

{{4/3} \;x\; π\; x\; 8\; x\; 8 \;x\; 8}/{{4/3}\; x\; π \;x\; 1\; x\; 1 \;x \;1}

= 512

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