Rohit invested a sum of money at simple interest and it became double itself in \(4\frac{1}{6}\) years. The rate of interest per annum was:
What sum (in ₹) will earn a simple interest of ₹240 in 2 years at 8% per year rate of interest?
Find the simple interest (in ₹) on ₹3,500 as a sum borrowed at 4% per year rate of interest for 2 years.