A boatman rows to a place 45 km distant and back in 20 hour. he finds that he can row 12 km with the stream in the same time as 4 km against the stream. find the speed of the stream.
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Here radius and height of large cylindrical vessel re 15 and 32.
Radius and height of small cylindrical vessel are 3 and 8.
No. of glasses filled with juice =Volume of large cylindrical vessel ÷Volume of small cylindrical glass
=pir^2h÷pir^2h
pi15×15×32 ÷pi3×3×8
=100
Cost for selling 1 glass juice=7
Cost for selling 100 glass juice=100×7=700
Radius and height of small cylindrical vessel are 3 and 8.
No. of glasses filled with juice =Volume of large cylindrical vessel ÷Volume of small cylindrical glass
=pir^2h÷pir^2h
pi15×15×32 ÷pi3×3×8
=100
Cost for selling 1 glass juice=7
Cost for selling 100 glass juice=100×7=700
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