What sum of money will produce Rs. `143` interest in `3(1)/(4)` years at `2(1)/(2)% p.a. ` simple interest ?

What sum will amount to Rs. 6600 in 4 years at 8% p.a. simple interest ?

Two equal sums of money were lent at simple interest at 11% p.a.for 3(1)/(2) years and 4(1)/(2) years respectively.If the difference in interests for two periods was 412.50, then each sum is: (a) Rs 3250 (b) Rs 3500( c) Rs 3750 (d) Rs 4250

What sum of money will become Rs. 1,352 in 2 years at 4% per annum compound interest ?

The simple interest on a sum of money is Rs. 50 What is the sum ? (i) the interest rate is 10% p.a. (ii) The sum earned simple interest in 10 years.

A sum of Rs. 6,600 amount to Rs. 8,756 in 4(2)/(3) years at x% p.a. simple interest. What will be the same amount to if invested at (x+3)% p.a. for 2(1)/(2) years, interest compounded yearly (nearest To Rs. 1)?

A certain sum of money amounts to Rs. 918 in 2 years and Rs. 969 in 3.5 years at simple interest. What is the rate of interest (in % per annum)?

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?