![](data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 72 71" width="72"></svg>)
(grade 4) a barrel of oil is 32kg, half of it is used, and there is still 17kg. How much is the oil? How much is the barrel?
Half oil weight: 32-17 = 15kg
Then oil weight: 15 * 2 = 30kg, barrel weight: 32-30 = 2kg
A barrel of oil weighs 17.5kg. After 40% is poured out, the barrel weighs 12.5kg. What's the weight of the barrel
17.5-12.5=5kg
5 divided by 40% = 12.5kg
17.5-12.5=5kg
Check the calculation, remember to adopt Oh!
A barrel of oil weighs 17 kg. After eating half of it, the whole barrel weighs 9 kg. How many kg does a barrel of oil weigh? How many kg in a barrel?
Oil weight: (17-9) × 2 = 16 kg
Barrel weight: 17-16 = 1kg
A: a barrel of oil weighs 16 kg, 1 kg in the barrel
A barrel of oil weighs 25 kg. Two fifths of it is used in the first time, and two fifths of it is used in the second time. Is the oil used in the two times the same?
How many kilos of oil are used in the two times?
It must be different
A total of 25 × 2 / 5 + 2 / 5
=10+2/5
=10.4kg
RELATED INFORMATIONS
- 1. A barrel of oil, the first time to use two fifths, the second time to use 10 kg, then the remaining oil just accounts for half of the whole barrel of oil How much oil is there in this barrel
- 2. For a barrel of oil, three tenths of it is used for the first time, and 10kg is used for the second time. Two fifths of this barrel of oil is used for the two times, so it's not enough Because the title couldn't be written down, I went on to write it down How many kilos of barrel oil are there? How many kilos are left after two times of use Please write the formula
- 3. A barrel of oil weighs 15 kg, which is 2 kg more than two fifths of the whole barrel for the first time? Hurry! Hurry! Hurry!
- 4. There is a bucket of salad oil in the non-staple food shop. The bucket weighs 56 kg with the same oil. After half of it is poured out, even the bucket weighs 29 kg. How many kg of oil are there in the bucket?
- 5. A barrel of oil weighs 56.2kg. After half of the oil is used, the barrel weighs 30.2kg. How many kilograms does the barrel weigh?
- 6. A barrel of oil weighs 56 kg, and half of it weighs 29.4 kg. How much does this barrel weigh?
- 7. One barrel of oil, two fifths of which were poured out in the first time, and one third of which were poured out in the second time. There are still 52 kg left. How many kg of this barrel of oil were there?
- 8. A barrel of oil, the first use of two fifths, the second use of one third, there are still 8 kg. How many kg of this barrel of oil?
- 9. A barrel of oil, the first time to use more than half of its 5 kg, the second time to use the remaining half less than 3 kg, the third time to use 12 kg, there are 8 kg. How many kg of this barrel of oil?
- 10. A barrel of oil is used up in two times, 23 kg for the first time and 23 kg for the second time______ Kilogram
- 11. Math problem: a barrel of oil weighs 310 kg, half of which is 160 kg. How many kg does the oil and barrel weigh?
- 12. A barrel of oil weighs 21 kg. If you sell 1 / 3 kg, how much is this barrel of oil Wrong, one third sold, 15kg left
- 13. A barrel of oil weighs 45 kg, and 37% of the oil in the barrel is poured out. The barrel weighs 27 kg______ Kilogram
- 14. A barrel of oil weighs 45 kg, and 37% of the oil in the barrel is poured out. The barrel weighs 27 kg______ Kilogram
- 15. A barrel of oil is 2kg, 15 kg of oil is poured out in the first time, 15 kg is poured out in the second time, and there is still oil left in the barrel___ Kilogram
- 16. Two fifths of a barrel of oil is used. The second time, it is 5 kg less than the first time. There are 15 kg left in the barrel. How many kg is the barrel of oil
- 17. After two fifths of the oil is poured out, the whole barrel weighs 5.2kg; after three fifths of the oil is poured out, the whole barrel weighs 4kg?
- 18. A barrel of oil weighs 3 / 4 of a barrel. After half of the oil is poured out, there is only 1 / 2 of a kilogram left. How many kilos does the barrel weigh?
- 19. For a barrel of oil, the first time you pour 1 / 5, the second time you pour 15 kg, the third time you pour 1 / 3, and there is 8 / 3 kg left. How many kg of this barrel of oil is there No, I'll give him 20 on a first come, first served basis
- 20. 300 kg soybean oil 39 kg, an average of 1 kg soybean oil______ Kilogram, 1 kilogram of oil______ A kilogram of soybeans