Saleem borrowed Rs. 20000 at compound interest and paid Rs. 22050 after 2 years to clear the debt. Find the rate of interest.

Reena borrowed from Kamal certain sum for two years at simple interest. Reena lent this sum to Hamid at the same rate for two years compound interest. At the end of two years she received Rs 110 as compound interest but paid Rs 100 as simple interest. Find the sum and rate of interest.

Reena borrowed from Kamal certain sum for two years at simple interest. Reena lent this sum to Hamid at the same rate for two years compound interest. At the end of two years she received Rs 110 as compound interest but paid Rs 100 as simple interest. Find the sum and rate of interest.

There is 100% increase to an amount in 8 years, at simple interest. Find the compound interest of Rs 8000 after 2 years at the same rate of interest.

Rs. 8000 invested at compound interest, gives Rs. 1261 as interest after 3 years. The rate of interest per annum is:

The simple interest and the compound interest on a certain sum for 2 years is Rs. 1250 and Rs. 1475 respectively. Find the rate of interest.