To complete a piece of work, Samir takes 6 days and Tanvir takes 8 days alone respectively. Samir and Tanvir took Rs.2400 to do this work. When Amir joined them, the work was done in 3 days. What amount was paid to Amir?

• ক Tk. 500
• খ Tk. 400
• গ Tk. 800
• ঘ Tk. 300 ✅ সঠিক উত্তর