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A pile of coal weighs 9 / 7 tons. After 1 / 7 is used up, there are still 8 / 7 tons left After cutting the cube wood block with the edge length of a meter into two small cuboids, the sum of the surface areas of the two cuboids is equal to the surface area of the original cube. () if a commodity is sold at a 20% discount, it is 15% cheaper than the original price. () a is more than 1, The reciprocal of a must be less than 1. (3 / 5 of 4 meters is as long as 4 / 5 of 3 meters.)
A pile of coal weighs 9 / 7 tons. After using 1 / 7, there are still 8 / 7 tons left. The reciprocal of 1 / 4 and 3 / 4 is 4 / 3. After cutting the cube wood block with the edge length of a meter into two small cuboids, the sum of the surface areas of the two cuboids is equal to the surface area of the original cube
One ton of coal weighs 8.4 tons. One third of the coal is transported away for the first time and one half for the second time. How many tons are left
Remaining: 8.4 × (1-1 / 3-1 / 2)
=8.4×1/6
=1.4 tons
RELATED INFORMATIONS
- 1. One ton of coal weighs 8.4 tons. One third of the coal is transported away for the first time, and the remaining half is transported away for the second time. How many tons are left
- 2. A pile of coal, the first day to use one fifth, the second day to use two fifths of tons, just used up, this pile of coal a total of how many tons
- 3. A pile of coal was burnt out in two days. Two fifths of the coal was burnt in the first day, and two fifths of the coal was burnt in the second day. How much more was burnt in that day?
- 4. A transport team transported a pile of coal. On the first day, it transported 2 / 7 of this pile of coal, and on the second day, it transported 2 / 5 of the first day. The remaining 42 tons were just transported out on the third day, How many tons isn't that for you?
- 5. A pile of coal has been transported 2:5. If 50 tons are being transported, the remaining coal will be 30 tons less than that already transported. How many tons of coal is the original pile of coal
- 6. There are two piles of 120 tons of coal, 20 tons from the first pile and 1 / 3 from the second pile. At this time, the weight of the two piles of coal is equal. How many tons are the two piles of coal? The whole process of solving the equation [(╯▽) thank you very much, for primary school students to understand!
- 7. There are two piles of coal. The first pile carries away 14 tons, and the second pile carries away part of the coal, leaving 60%. The weight ratio of the remaining first pile and the second pile is 3:5?
- 8. There are two piles of coal. The second pile is 2.5 times as much as the first pile. If 3.6 tons are taken from the second pile and put in the first pile, it will be equal, How many are the first pile and the second pile? Don't give up when answering questions
- 9. There are two piles of coal. The first pile has 50 tons, and the second pile is seven twentieth more than the first pile. How many tons are there in total?
- 10. There are 360 tons of rice in warehouse A and warehouse B. warehouse A is 25% more than warehouse B. how many tons of rice are there in warehouse B?
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- 14. A pile of sand weighs four tons. Two fifths of the sand was carried away in the first time. How many tons were carried away in the second time?
- 15. There are three fourths of tons of coal in the canteen. Two fifths of them are used. How many tons are left?
- 16. There are three fourths of tons of coal in the canteen, two fifths of which are used. How many tons are left?
- 17. There are 48 apples in three piles. First, take out the apples equal to the number of the second pile from the first pile and merge them into the second pile; then take out the apples equal to the number of the third pile from the second pile and merge them into the third pile; finally, take out the apples equal to the number of the first pile from the third pile and merge them into the first pile
- 18. 34 of number a is equal to 25 of number B. number a is 80 and number B is 25______ ．
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