QA - Simple & compound Interest

Shanta borrowed Rs 6000 from the State Bank of India for 3 years 8 months at 12% per annum. What amount will clear off her debt?

• Rs. 7742

• Rs. 6875

• Rs. 9669

• Rs. 8640

Hari borrowed Rs 12600 from a moneylender at 15% per annum simple interest. After 3 years, he paid Rs 7070 and gave a goat to clear off the debt. What is the cost of the goat?

• Rs. 6257

• Rs. 11201

• Rs. 5799

• Rs. 11200

A sum when reckoned at 7 1/2% per annum amounts to Rs 3920 in 3 years. Find the sum

• Rs. 4200

• Rs. 6700

• Rs. 3200

• Rs. 5200

A sum of money lent at simple interest amounts to Rs 783 in 2 years and to Rs 837 in 3 years. Find the sum and the rate per cent per annum.

• 11%, Rs. 3000

• 9%, Rs. 3000

• 8%, Rs. 3000

• 10%, Rs. 3000

A sum of money lent at simple interest amount to Rs 4745 in 3 years and to Rs 5475 in 5 years. Find the sum and the rate per cent per annum.

• 10%, Rs. 3000

• 12%, Rs. 3000

• 11%, Rs. 3000

• 25%, Rs. 3000

Divide Rs 3000 into two parts such that the simple interest on the first part for 4 years at 8% per annum is equal to the simple interest on the second part for 2 years at 9% per annum.

• Rs. 2299

• Rs. 1920

• Rs. 5683

• Rs. 2346

Divide Rs 3600 into two parts such that if one part be lent at 9% per annum and the other at 10% per annum, the total annum income is Rs 333.

• Rs. 900

• Rs. 800

• Rs. 700

• Rs. 600

At what rate per cent annum simple interest will a sum double itself in 10 years?

• 12%

• 10%

• 12 1/2%

• 8%

x, y and z are three sums of money such that y is the simple interest on x and z is the simple interest on y for the same time and same rate. Which of the following is correct?

• z^2 = xy

• x^2 = yz

• y^2 = zx

• xyz = 1

A borrows Rs 8000 at 12% per annum simple interest and B borrows Rs 9100 at 10% per annum simple interest. In how many years will their amounts be equal?

• 20 years

• 18 years

• 24 years

• 22 years