A group of 21 school students shared the ice-cream brick in lunch break to celebrate the Independence Day. If each one takes a hemispherical scoop of ice-cream of 3 cm radius, find the volume of ice-cream eaten by them. (a) If the dimensions of the ice-cream brick are 10cm × 10cm × 12cm, how much volume of cream is left?
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Answered by
82
Total volume of brick= lbh
=10*12*10
=1200cm^3
Volume of 1 ice cream= 2/3πr^3
=2/3*3.14*3*3*3
=56.52cm^3
Volume of cream taken by 21 students. =21*56.52
=1186.92cm^3
Therefore ice cream left in brick=13.08cm^3
=10*12*10
=1200cm^3
Volume of 1 ice cream= 2/3πr^3
=2/3*3.14*3*3*3
=56.52cm^3
Volume of cream taken by 21 students. =21*56.52
=1186.92cm^3
Therefore ice cream left in brick=13.08cm^3
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Answered by
29
v of hemisphere =2/3×22/7×3×3×3
=396/7
ice cream eaten by 21 students = 396/7×21
=1188cm3
=396/7
ice cream eaten by 21 students = 396/7×21
=1188cm3
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