15. A large block of steel weighing 4.5 kg is melted and 18 small spheres of equal size are formed
from it. Find the weight of each small sphere in grams.
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mass of block = 18 × mass of spheres
4500gm= 18× mass of spheres
4500÷ 18 = mass of sphere
mass of sphere = 250 gm
hope it helps
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