Rafi invested 1/3 of his capital at 7%, 1/4 at 8% and the remainder at 10%. If his total simple interest is 561 taka after 1 year then the capital is -

• ক Tk. 5500
• খ Tk. 6200
• গ Tk. 6000
• ঘ Tk. 6600 ✅ সঠিক উত্তর