List of top General Aptitude Questions on SI & CI

Statements:
• All professors are researchers.
• Some researchers are authors.
• No author is a politician. Which of the following conclusions definitely follows?
A sum amounts to Rs 9,680 in 2 years and Rs 10,648 in 3 years at compound interest. Find the rate of interest per annum.
Find the compound interest on ₹8000 for 2 years at 10% per annum compounded annually.
Find the compound interest on ₹5000 at 10% per annum for 2 years.
A sum of money triples itself in 8 years at simple interest. In how many years will it become five times itself at the same rate?