X, Y and Z take 18 days to complete a piece of work. If X works alone he finishes the work in 36 days and if Y works alone he finishes it in 60 days. How long will it take Z to complete the work alone?

Question

নিচের অপশন গুলা দেখুন

• 114 days
• 90 days
• 78 days
• 96 days