Q: If 6 engines consume 24 metric tonnes of coal, when each is working 8 hours day, how much coal will be required for 9 engines, each running 13hours a day, it being given that 2 engines of former type consume as much as 3 engines of latter type ?

• 1
  45 metric tonnes
• 2
  47 metric tonnes
• 3
  55 metric tonnes
• 4
  34 metric tonnes