Volume of metal in hollow sphere = 4/3π(8^{3} – 6^{3})
= 1184/3. Π cm^{3}
Volume of metal in one cone = 1/3πr^{2}h
= 1/3π × 2^{2} × 8
= 32/3π cm^{3}
Number of cones = Volume of metal in sphere/Volume of metal in one cone
= (1184/3π)/(32/3π)
= 1184/32
= 37