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A shopkeeper has one laddoo of radius ...

A shopkeeper has one laddoo of radius 5cm. With the same material, how many laddoos of radius 2.5cm can be made.

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Volume of 1 larger laddoo = Volume of m nos. of smaller laddoos
`4/3piR^3=m4/3pir^3`
`4/3pixx5^3=m4/3pixx2.5^3`
`125=mxx(25/10)^3`
`m=8`
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