Q. 145.0( 4 Votes )

# A right circular

Answer :

Given, Diameter of right circular cylinder = 12 cm

Radius of right circular cylinder (r1) = = 6 cm

Height of right circular cylinder (h1) = 15 cm

Volume of Cylindrical ice-cream container = r12h1

= 6 6 15

= cm3

Diameter of cone = 6 cm

Radius of cone (r2) = = 3 cm

Height of cone (h2) = 12 cm

Radius of hemisphere = radius of cone = 3 cm

Volume of cone full of ice-cream = volume of cone + volume of hemisphere

= r22h2 + r23

= ( r22h2 + 2r23)

= (32× 12 + 2× 33)

= (9 ×12 + 2 × 27)

= (108 +54)

= 162

= cm3

Let n be the number of cones full of ice cream.

Volume of Cylindrical ice-cream container = n Volume of one cone full with ice cream = n N = n = 10

Hence, the required number of cones = 10

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