A sum becomes ₹500 in 5 years and ₹600 in 7 years at a certain rate percent p.a at of simple interest. What is the sum?

₹300 ₹400 ₹200 ₹250

₹250

Simple Interest of 2 years = 600 - 500 = 100 Simple interest of 1 year = 50 Simple interest of 5 years = 50 × 5 = 250 We know , Amount = Principal + Simple interest 500 = Principal + 250 Principal = Rs. 250