If 9 engines consume 24 metric tons of coal, when each is working 8 hours a day; how much coal will be required for 8 engines, each running 13 hours a day, it being given that 3 engines of the former type consume as much as 4 engines of latter type?
Q1. If 9 engines consume 24 metric tons of coal, when each is working 8 hours a day; how much coal will be required for 8 engines, each running 13 hours a day, it being given that 3 engines of the former type consume as much as 4 engines of latter type?
Answer: 26 metric tones
Explanation: Adjusting for engine efficiency (3 old = 4 new) and working hours, the equivalent coal consumption works out to 26 metric tons.