List of top General Questions on Compound Interest asked in CUET (PG)

The radius of a pipe is reduced by one fourth. If its volume remains unchanged, what will be its length now?
What is the difference between compound interests on ₹15000 at 8% per annum for \( \frac{3}{2} \) years when interest is compounded semi-annually and when it is compounded annually? (Rounded off to nearest rupee)