A sum of ₹ 100 invested for 3 years at a rate of 20% per annum compounded annually, the principal for the second year is ₹ _______
₹ 120
₹ 110
₹ 115
₹ 20
A man invested ₹ 1000 for 3 years at 11per cent simple interest per annum and ₹1000 at 10 % compounded interest per annum compounded annually for three years. Find which investment is better.