Rs. 2000 was lent at 40% per annum at simple interest for 1 year. If interest on it was at compound interest and compounded quuarterly, then the amount obtained would be ___.

What sum lent out at 3% per annum simple interest would produce Rs 225 as interest in 5 years?

Rs 1600 lent at a compound interest of 5% per annum, compounded half yearly for one year will amount to:

The simple interest and compound interest on a certain sum for 2 years are Rs. 800 and Rs. 880 respectively. The rate of interests (in % per annum ) on both the sums is the same. If the interest on the sum lent at compound interest is compounded annually, find the rate of interest ( in % per annum).

If the compound interest of principal Rs. p is a% per annum and the interest is compounded half-yearly, then find the amount in n years.

A sum of Rs 4000 is split into two parts. One part is lent at simple interest and the other at compound interest, interest being compounded annually. At the end of two years, the total amount of interest earned is Rs 1720. Find the sum lent at simple interest, if each part is lent at 20% per annum (in Rs.)