A borrowed a sum of Rs. 4000 from B at the rate of 10% per annum under simple interest. Immediately A gave this money to C at the same rate under compound interest compounded quarterly. Find the profit of A in doing so after 6 months.

A man borrowed Rs 10,000 at 12% per annum, interest compounded quarterly. Find the amount that he has to pay after 9 months.

A borrowed a certain sum of money from B at the rate of 10% per annum under simple interest and lens one-fourth of the amount to C at 8% per annum under simple interest and the remaining amount to D at 15% per annum under simple interest. If the end of 15 years. A made profit of Rs 5850 in the deal, then find the sum that A had lent to D.

A person borrowed a sum of Rs. 8000 at the rate of 10% per annum compounded semi-annually. Find the amount and compound interest for a period of one year.

Find the amount on the sum of Rs 15,625 for 18 months under compound interest, compounded half yearly at the rate of 16% per annum.

A certain sum of money amounts to Rs 23,400 in 3 years at 10% per annum simple interest. Find the amount of the same sum in 2 years and at 10% p.a. compound interest.

Find the compound interest on Rs 320000 for one year at the rate of 20% per annum, if the interest is compounded quarterly.

Find the compound interest on Rs 320000 for one year at the rate of 20% per annum, if the interest is compounded quarterly.