A certain sum amounts to Rs. 4500 in `2(1)/(2)` years at 20% per annum simple interest. Find the sum (in Rs. ).

A sum of money amounts to Rs.1500 in 5 years at 10% per annum at simple interest. find the sum

A sum of money amounts to Rs. 1500 in 5 years at 10% per annum at simple interest. Find the sum.

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.

A certain sum becomes Rs. 2400 in 10 years at the rate of 2% per annum under simple interest. Find the sum.

A certain sum amounts to Rs. 9243.20 in 1^(1/2) years at 4% p.a. simple interest. What will be the simple interest on the same sum for 7^(1/2) years at 8% per annum?

A certain sum amounts to Rs.280900 in 2 years at 6% per annum, interest compounded annually. The sum is :