Nine engines consume 24 metric tonnes of coal, when each is working 8

1.
Nine engines consume 24 metric tonnes of coal, when each is working 8 hours day. How much coal is required for 8 engines, each running 13 hours a day, if 3 engines of former type consume as much as 4 engines of latter type?

A. 20 metric tonnes

B. 39 metric tonnes

C. 23 metric tonnes

D. 26 metric tonnes

Answer» E.

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Nine engines consume 24 metric tonnes of coal, when each is working 8 hours day. How much coal is required for 8 engines, each running 13 hours a day, if 3 engines of former type consume as much as 4 engines of latter type?

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1.	Nine engines consume 24 metric tonnes of coal, when each is working 8 hours day. How much coal is required for 8 engines, each running 13 hours a day, if 3 engines of former type consume as much as 4 engines of latter type?
A.	20 metric tonnes
B.	39 metric tonnes
C.	23 metric tonnes
D.	26 metric tonnes
Answer» E.