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The quality of the two piles of coal is equal. After 5 / 1 of the first pile of coal is transported away, 400 tons are left. After 2 / 1 of the second pile of coal is transported away, () tons are left Thank you very much
There are four fifths left in the first pile
So the mass is 400 / (4 / 5) = 500 tons
So 250 tons left in the second pile
After one fourth of a pile of coal is transported away, there are 120 tons left. How many tons of this pile of coal are there?
120 / (1-1 / 4) = 160 tons
There are two piles of coal, 60 tons in the first pile and 48 tons in the second pile
What's left in the first pile is just three times as much as that in the second pile. How many tons are transported
A total of 2x tons are transported
（60-X）：（48-X）=3:1
Solution ratio: x = 42
All in all:
2 * 42 = 84 (T)
The total weight of the two barrels of oil is 540 kg, 4 / 5 for a and 3 / 4 for B. the remaining weight of the two barrels of oil is equal. How many kg for a and B?
It's going to be handed in tomorrow. It's better to use the equation!
1 / 5 of a is equal to 1 / 4 of B, so a: B = 5:4, a is 540 * 5 / 9 = 300, B is 540 * 4 / 9 = 240
The two barrels of oil a and B are equal in weight. The first barrel uses 26kg, and the second barrel pours 14kg. At this time, the weight of the second barrel of oil is three times that of the first barrel. How many kg are the two barrels of oil?
Suppose that the original weight of two barrels of oil is XKG, (x-26) × 3 = x + 14, & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 3x-78 = x + 14, & nbsp; & nbsp; & nbsp; & nbsp; 3x-x-78 = x + 14-x, & nbsp; & nbsp; & nbsp; 2x-78 + 78 = 14 + 78, & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 2x △ 2 = 92 △ 2, & nbsp
The two barrels of oil a and B weigh a total of 80 kg. When 1 / 11 of the barrel a is poured into barrel B, the weight of barrel a is 3 / 5 of that of barrel B
The problem of primary school is simple
80÷（1+5/3）÷（1-1/11）
=80÷8/3÷10/11
=30÷10/11
=33 (kg)
A: the original barrel of oil weighs 33 kg
I take time out of my busy schedule. Tomorrow is the mid-term exam. Choose me
There are two barrels of oil. The weight of barrel a is three times that of barrel B. If you pour 16 kg of barrel a oil to barrel B, the two barrels are the same weight. How many kg of barrel a and barrel B oil?
A barrel oil: (16 × 2) / (1-1 / 3) = 32 / (2 / 3) = 48 (kg)
B barrel oil: 48 △ 3 = 16 (kg)
The two barrels a and B contain a total of 44 kg of oil. If the barrel a empties 15 kg and the barrel B empties 2.8 kg, the oil in the two barrels is equal. How many kg of oil did the two barrels originally contain?
Suppose the weight of the first barrel of oil is XKG, according to the meaning of the title, (1-15) x = 44-x + 2.8 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 45x = 46.8-x & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 45x + X = 46.8 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 95x = 46.8 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp
A and B have two barrels of oil. A is one kilogram more than B, and a pours 5000 grams to B. now a and B have two barrels of oil. How much more?
1-5/7
A and B have the same amount of oil. One half of a barrel is removed, and one half of a kilogram is used in B barrel. Which barrel has more oil left
If the mass of two barrels of oil is less than 1kg, there will be more barrels
2. If the mass of two barrels of oil is more than 1kg, there will be more oil left in B barrel
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