Q. 5 C4.5( 10 Votes )

Solve any two sub

Answer :



Side of cube = a = 50 cm


Volume of cube = V = a3 = 503 = 125000 cm3


Radius of cylinder = r = 7 cm


Height of cylinder = h cm


Volume of cylinder = πr2h


= (22/7) × 72 × h


= 154h cm3


10 cylinder tins are made


Total volume of cylinders = 10 × 154h


= 1540h cm3


Wastage of 12% of volume of cube therefore 88% of volume is utilized



Hence 110000 cm3 of cube volume is utilized to make 10 tins


Volume remains unchanged


volume of cube utilized = Total volume of cylinders


110000 = 1540h


11000 = 154h


h = 11000/154


h = 71.428 cm


Height of cylinder = 71.428 cm


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