A lent Rs. 5000 to B for 2 years and Rs. 3000 to C for 4 years on simple interest at the same rate of interest and received Rs. 2200 in all from both of them as interest. The rate of interest per annum is:

• ক 0.09
• খ None of these ✅ সঠিক উত্তর
• গ 0.05
• ঘ 0.07