Professor Wong measured the composition of metals in a sample. The sample contained 338.874 kilograms of copper, 13.75 kilograms of nickel, 0.09 kilograms of iron, 8.71 kilograms of gold, and 5.276 kilograms of cobalt. How many kilograms was Professor Wong's sample?

Answer 1

To find the total weight of the sample, we simply need to add up the weight of each metal:

338.874 + 13.75 + 0.09 + 8.71 + 5.276 = 366.7 kilograms

Therefore, Professor Wong's sample weighed 366.7 kilograms.