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