Maths If 5 engines working for 9 hours a day consume 6 metric tons of coal, then how much coal will be consumed by 8 engines working for 10 hours a day, while 3 engines of the first type consume as much as 4 engines of the second type?
| Q.201341: If 5 engines working for 9 hours a day consume 6 metric tons of coal, then how much coal will be consumed by 8 engines working for 10 hours a day, while 3 engines of the first type consume as much as 4 engines of the second type? |
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