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If one fourth of a barrel of oil weighs 19 kg, if one third weighs 17 kg, how much does it weigh To process, including the calculation process, oh, if there is, thank you, please Four, please write a little more detailed, such as the process
The unloading barrel is XKG and the oil is ykG
1-1 / 4 = 3 / 4kg
1-1 / 3 = 2 / 3kg
So, according to the meaning of the title, we set up the equation
3/4Y+X=19
2/3Y+X=17
So y = 24, x = 1
A: the barrel weighs 1kg
OK
If you pour out 4 / 1 of a barrel of oil, it will weigh 19 kg. If you pour out 3 / 1, it will weigh 17 kg. How many kg does this barrel of oil weigh?
The barrel weight is XKG and the oil weight is ykG
Then (3 / 4) y + x = 19
(2/3)Y+X=17
The solution is x = 1kg, y = 24kg
So this barrel of oil weighs 25kg
A barrel of oil, if you pour out a quarter of the oil, even 19 kg in the barrel, if you pour out a third of the oil, even 17 kg in the barrel, how many kg does this barrel of oil weigh?
19-17 = 2kg
One third minus one fourth is one twelfth
2 divided by one twelfth = 24 kg
A barrel of oil, if 1 / 4 of the oil poured out, weighs 19 kg. If 1 / 3 of the oil poured out, weighs 17 kg, how many kg does the barrel weigh?
This barrel of oil weighs (19-17) / (1 / 3-1 / 4) = 24 kg
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