Find the simple interest on Rs. 7300 at 15% per annum from April 28 to November 4.

Find the simple interest on Rs 5600 at 20% per annum from May 22 to November 5 of the same year.

Find the simple interest on Rs. 3000 at 10% per annum from January 1, 2007 to March 15, 2007 (in Rs.)

Find the simple interest on Rs 3000 at 6(1)/(4)% per annum for the period from 4 th Feb.2009 to 18 th April,2009.

Find the simple interest on Rs. 2560 for 3 years at 15% per annum.

Find the simple interest on (a) Rs. 2500 at 15% per annum for 2 years. (b) Rs. 3000 at 17 (1)/(3)% per annum for 1(1)/(2) years.

Find the compound interest on Rs 24000 at 15% per annum for 2 1/3 years.