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If the radius of the base of a cone is d...

If the radius of the base of a cone is doubled, and the volume of the new cone is three times the volume of the original cone, then what will be the ratio of the height of the original cone to that of the new cone ?
यदि किसी शंकु के आधार की त्रिज्या दोगुनी कर दी गयी है , और नए शंकु का आयतन आरंभिक शंकु के आयतन का तिगुना है, तो आरंभिक शंकु और नए शंकु की ऊँचाइयों के बीच क्या अनुपात होगा ?

A

`9:4`

B

`4:3`

C

`2:9`

D

`1:3`

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The correct Answer is:
B
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