If bell metal consists of 25 parts copper to 12 parts tin, what is the weight of copper and tin in a bell weighing 1850 kg?

To determine the weight of copper and tin in a bell made from a specific alloy, we start by understanding the composition of bell metal, which consists of 25 parts copper to 12 parts tin.

First, calculate the total number of parts in the alloy. By adding the parts of copper and tin together, we have:

25 parts (copper) + 12 parts (tin) = 37 parts total

Next, we need to find out what fraction of the total weight of the bell each component represents. Copper's proportion in the alloy can be calculated as follows:

Fraction of copper = 25 parts / 37 total parts

Fraction of tin = 12 parts / 37 total parts

Now, we apply these fractions to the total weight of the bell, which is 1850 kg, to determine the individual weights:

Weight of copper = 1850 kg * (25 / 37)

Weight of tin = 1850 kg * (12 / 37)

Calculating these gives:

Weight of copper = 1850 kg * 0.6757 ≈ 1,250 kg

Weight of tin = 1850 kg * 0.3243 ≈ 600 kg

Thus,