Quantitative Aptitude - MCQ Practice Questions

A sum of ₹15,000 is invested at 7.5% simple interest p.a. In how much time will it earn an interest of ₹3,750?

A borrowed ₹5,000 from B at 8% simple interest for 3 years. A then lent this to C at 10% for 3 years. What is A's profit?