₹3000 is lent out at 9% rate of interest.Find the interest which will be received.

₹3000 is lent out at 9% rate of interest. Find the interest which will be recieved at the end 2"" 1/2 years.

Sunita takes a loan of ₹5000 at 12% rate of interest. Find the interest she has to pay at the end of one year.

₹10,000 is invested at 5% interest rate per annum. Find the interest at the end of one year.

A child friendly bank announces a savings scheme for school children. They will give kiddy banks to children. Children have to keep their savings in it and the bank collects all the money once in a year. To encourage children savings, they give 6% interest if the amount exceeds by ₹10,000, and other wise 5%. Find the interest received by a school if they deposit is ₹9000 for one year.

The side of a square increases at the rate of lem per second. Find the rate at which the area of the square increases wen the sideris 15 cm. Also find the rite at which the perimeter increases

A sum of Rs. 1000 is invested at 8% simple interest per year. Calculate the interest at the end of each year. Do these interests form a AP? If so, find the interest at the end of 30 years.

A sum of Rs. 1000 is invested at 8% simple interest per year. Calculate the interest at the end of each year. Do these interests 1^(st), 2^(nd) and 3^(rd) years form a AP? If so, find the total interest to be paid for 30 years making the use of this fact.

A sum of ₹2500 is borrowed at a rate of 12% per annum for 3 years. Find the simple interest on this sum and also the amount to be paid at the end of 3 years.

In 4 years, ₹6500 amounts to ₹8840 at a certain rate of interest. In what time will ₹1600 amounts to ₹1816 at the same rate?