A conical vessel (solid) is made of iron. Its base radius is 7 cm and height is 15 cm. If the weight of the iron per cubic centimetre is 15 g, what is the weight of the vessel?
Answer & explanation
Correct answer: option 4
We know that,
Volume of the Conical Vessel = \(\frac{1}{3}\) πr2h
We have,
Radius of conical vessel= 7 cm
Height of conical vessel = 15 cm.
Weight of iron per cubic cm = 15 g.
Volume of the conical vessel is = \(\frac{1}{3}\) × \(\frac{22}{7}\) × (7)2 × 15 = 770cm3
Weight of the vessel = 770 × 15 =11550 gm = 11.55 kg.