Question

Масса чугунной болванки 20 кг Сколько деталей по 18 кг модно отлить из 10 балванок?Сколько чугуна останется?

Answer 1

20 * 10 : 18 = 200 : 18 = 11,111 ≈ 11 ( деталей ) 
200 - 18 * 11 = 200 - 198 = 2 ( кг ) чугуна останется

Answer 2

20 кг*10=200 кг (всего чугуна)
200 кг:18 кг=11 (ост. 2) (деталей)
Ответ: можно отлить 11 деталей и 2 кг чугуна останется

Answer 3

Calculating the Number of Parts and Remaining Iron

To calculate the number of parts and the remaining iron, we can use the given information about the mass of the pig iron and the mass of the parts to be cast.

Given: - Mass of pig iron ingot = 20 kg - Mass of each part to be cast = 18 kg - Number of pig iron ingots = 10

Calculating the Number of Parts

To calculate the number of parts that can be cast from the pig iron ingots, we can use the formula:

Number of parts = (Total mass of pig iron) / (Mass of each part)

Substituting the given values: Number of parts = 20 kg / 18 kg = 1.11

Since the number of parts must be a whole number, we can cast 1 part from each pig iron ingot. Therefore, from 10 pig iron ingots, we can cast 10 parts.

Calculating the Remaining Iron

To calculate the remaining iron after casting the parts, we can use the formula:

Remaining iron = Total mass of pig iron - (Number of parts * Mass of each part)

Substituting the given values: Remaining iron = 20 kg - (10 * 18 kg) = 20 kg - 180 kg = -160 kg

Since the result is negative, it indicates that there is not enough pig iron to cast the desired number of parts. Therefore, no parts can be cast from the given amount of pig iron, and there will be no remaining iron.

Therefore, from 10 pig iron ingots, it is not possible to cast any parts, and there will be no remaining iron.