r1=10cmr2=20cmh=21cmVol. of socket =Cost of 1L of milk = ₹ 40∴ Cost pr 15.4L of milk = 40× 15.4 =₹616ORR=3.5cmH= 9.5-3.5=6cmVol. of the solid = vol. of hemisphere to vol. of cone.

Q. 39

An open metal buc

Class 10th Mathematics - Board Papers

Answer :

r₁=10cm

r₂=20cm

h=21cm

Vol. of socket =

Cost of 1L of milk = ₹ 40

∴ Cost pr 15.4L of milk = 40× 15.4 =₹616

R=3.5cm

H= 9.5-3.5=6cm

Vol. of the solid = vol. of hemisphere to vol. of cone.

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