# If 6 engines consume 15 metric tones of coal when each is running 9 hours a day, how much coal will be required for 8 engines, each running 12 hours a day, if being given that 3 engines of former type consume as much as 4 engines of latter type?

 [ A ]    20 [ B ]    18 [ C ]    27 [ D ]    36 [ E ]    None of these
 Answer : Option A Explanation :