Maths If 9 engines working for 8 hours a day consume 24 metric tons of coal, then how much coal will be consumed by 8 engines working for 13 hours a day while 3 engines of the first type consume as much as 4 engines of the second type?
| Q.201309: If 9 engines working for 8 hours a day consume 24 metric tons of coal, then how much coal will be consumed by 8 engines working for 13 hours a day while 3 engines of the first type consume as much as 4 engines of the second type? |
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