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Question

Pavan built a conical flask using 550 m2 of aluminium sheet. If the radius of the flask is 7m, then how much water can he fill into the flask?


A

1232 m3

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B

1232000 l

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C

123200 l

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D

12.32 m3

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Solution

The correct options are
A

1232 m3


B

1232000 l


Since, the area of aluminium sheet = Curved surface area of flask
550 m2=πrl

550=227×7×l

l=25 m

From the relation l2=h2+r2

h=(l2r2)
h=25272
h=24 m
Volume of conical flask = 13 πr2h
=13×227×72×24
=1232 m3


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