Question

The compound interest on a certain sum for 2 years at 10% per annum is Rs. 1155. The simple interest on the same sum for double the time at half the rate percent per annum is ?

Answer 1

Answer:

p*(1+10/100)²-p=1155

p*(121/100)-p=1155

121p-100p=1155*100

21p=115500

p=5500

5500*4*5/100=1100