Workers use 5 parts of cement, 3 parts of sand and 2 parts of stone to prepare a kind of concrete. Now they need to prepare 6000 kg of concrete. How many kg of cement, sand and stone do they need?

Workers use 5 parts of cement, 3 parts of sand and 2 parts of stone to prepare a kind of concrete. Now they need to prepare 6000 kg of concrete. How many kg of cement, sand and stone do they need?

Workers use 5 parts of cement, 3 parts of sand and 2 parts of stone to prepare a kind of concrete. Now they need to prepare 6000 kg of concrete. How many kg of cement, sand and stone do they need?
A: workers use 5 parts of cement, 3 parts of sand and 2 parts of stone to prepare a kind of concrete. Now they need to prepare 6000 kg of concrete. This kind of concrete needs 3000 kg of cement, 1800 kg of sand and 1200 kg of stone
It is known that: 5 parts of cement, 3 parts of sand and 2 parts of stone, cement: Sand: stone, 5:3:2?
According to the question does not consider the concrete also needs water
The weight of each part of material in 6000 kg concrete is calculated: 6000 kg △ 5 + 3 + 2 = 600 kg
Cement: 600 kg × 5 phr = 3000 kg;
Sand: 600 kg × 3 parts = 1800 kg;
Stone: 600 kg × 2 parts = 1200 kg
A: workers use 5 parts of cement, 3 parts of sand and 2 parts of stone to make a kind of concrete. Now they need to make 6000 kg of concrete. This kind of concrete needs 2750 kg of cement, 1650 kg of sand, 1100 kg of stone and 500 kg of water
But after all, water needs to be added to the concrete. To make 6000 kg of concrete, water is necessary. Put in the estimated water,
The assumed weight per cubic meter of concrete (kg) can be 2350-2450 kg (2400 kg)
When 6000 kg concrete is prepared, it is equivalent to 2.5m and 179; about 6000 kg ／ 2400KG = 2.5m and 179;
It is assumed that the water consumption per cubic meter of concrete is 200 kg
For concrete, the water consumption is 200 (kg) × 2.5m (kg) = = 500 (kg)
It is known that 5 parts of cement, 3 parts of yellow sand and 2 parts of gravel are mixed in the ratio of 5:3:2. The mixing ratio is 6000 kg of concrete
6000 kg concrete minus water is 6000 kg - 500 kg = 5500 kg
After water reduction, the sum of cement, yellow sand and stone is 5500 kg, the sum of mix proportion is 5 + 3 + 2 = 10 parts, each part should be 5500 kg ／ 10 = 550 kg
Cement: 550 kg × 5 parts = 2750 kg
Huangsha: 550 kg × 3 parts = 1650 kg
Stone: 550 kg × 2 parts = 1100 kg
The sum of cement, sand, stone and water is 2750kg + 1650kg + 1100kg + 500kg = 6000kg
Now the mix proportion of cement, sand, stone and water is 5 ∶ 3 ∶ 2 ∶ 0.91