If interest on Rs. X for 2 years at R% p.a. is Rs. 80, then interest on Rs. 2x for 1 year at R% p.a. is____.

If interest on Rs x for 2 years at R% per annum is Rs 80, then interest on Rs 2x for one year at R% per annum is (a) Rs 160 (b) Rs 40 (c) Rs 80 (d) Rs 120

If interest on Rs x for 2 years at R% per annum is Rs 80, then interest on Rs 2x for one year at R% per annum is (a) Rs 160 (b) Rs 40 (c) Rs 80 (d) Rs 120

Find the simple interest on Rs 500 for 3 years at 10% p.a.

Interest on Rs.500 at 12% p.a. for 1 year is _______.

Fill in the blanks If the interest of Rs 10 in 1 year is Rs 1, then the interest of Rs 1 in 1 year will be____.

The compound interest on Rs. 1000 at 10% p.a. in 3 years :

The compound interest on Rs. 10000 at 20% p.a. in 4 years :

If Meenakshee pays an interest of Rs. 1500 for 4 years on a sum of Rs. 2500, find the rate of interest per annum(p.a.)