Q. 5 C4.5( 10 Votes )

# Solve any two sub

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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