A sum of money lent out at simple interest amounts to `₹20,000` in `1` year and to `₹30,000` in `5` years. Find the rate of interest and some of money.

A sum of money lent out at simple interest amounts to ₹1900 in 1 year and to ₹2800 in 4 year. Find the rate of interest and the sum of money.

A sum of money lent out at simple interest amounts to ₹2880 in 2 years and to ₹3600 in 5 years. Find the sum of money and the rate of interest.

A sum of money lent out at simple interest amounts to ₹7440 in 3 years and to ₹9360 in 7 years. Find the sum of money and the rate of interest.

A certain sum of money, placed out at compound interest, amounts to रु 6,272 in 2 years and to रु 7,024.64 in 3 years. Find the rate of interest and the sum of money.

A sum of money, invested with simple interest, amounts to ₹23,400 in 5 years and to ₹26,640 in 8 years. Find the sum of money and the rate of interest.

A sum of money, invested at compound interest, amounts to Rs 16,500 in 1 year and to Rs 19,965 in 3 years. Find the rate per cent and the original sum of money invested.

A sum of money, invested at compound interest, amounts to Rs 19,360 in 2 years and to Rs 23,425.60 in 4 years. Find the rate percent and the original sum of money.

A sum of money, invested at compound interest, amounts to Rs 19,360 in 2 years and to Rs 23,425.60 in 4 years. Find the rate percent and the original sum of money.

A sum of money amounts to ₹14,880 in 6 years and to ₹16,320 in 9 years. Find the sum of money and the rate of interest.

A sum of money, at compound interest, amounts to रु 8,100 in 5 years and to रु 8,748 in 6 years. Find : (i) the rate per cent (ii) amount in 7 years and (iii) amount in 4 years.