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The internal and external diameters of a...

The internal and external diameters of a hollow hemispherical vessel are 24cm and 25cm respectively. The cost to paint `1c m^2` the surface is Rs. 0.05. Find the total cost to paint the vessel all over. `(u s epi=(22)/7)`

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RD SHARMA ENGLISH-SURFACE AREA AND VOLUME OF A SPHERE -All Questions
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