Question

Задача: Из 120 кг руды получили 94,8 кг олова. Каково процентное содержание олова в руде?

Answer 1

Нужной 94,8 разделить на 120 и умножить на 100, получим: 94,8/120*100=79%

Answer 2

Calculating the Percentage Content of Lead in the Ore

To calculate the percentage content of lead in the ore, we can use the following formula:

Percentage Content = (Amount of Lead Obtained / Total Amount of Ore) * 100

Given that 120 kg of ore yielded 94.8 kg of lead, we can use this information to calculate the percentage content of lead in the ore.

Calculation

Using the formula, we can calculate the percentage content of lead in the ore as follows:

Percentage Content = (94.8 kg / 120 kg) * 100

Percentage Content = (0.79) * 100

Percentage Content ≈ 79%

Therefore, the percentage content of lead in the ore is approximately 79%.