A man invested $\frac{1}{3}$ of his capital at 8%, $\frac{1}{4}$ at 10% and the remainder at 12%. If his annual income is ₹671, find the capital.

What is the present worth of ₹ 161 due in 3 years at 5% simple interest per annum?

Arrange the simple interest of the following cases in decreasing order-

(A) The simple interest on Rs 6600 at 5% per annum for 2 yrs.

(B) The simple interest on Rs 200 at 6% per annum for 5 yrs.

(C) The simple interest on Rs 840 at 5% per annum for 4 yrs.

(D) The simple interest on Rs 5000 at 12% per annum for 2 yrs.

Choose the correct answer from the options given below:

The simple interest of an amount is $\frac{16}{25}$ of the principal. Find the rate % PA, if the time and rate both are numerically equal.

Ananyaa invests an amount of Rs. 9534 at the rate of 4 % per annum to obtain a total amount of Rs. 11442 on simple interest after a certain period. Find the number of years that Ananyaa had to invest the amount to obtain the total sum of Rs. 11442?

The simple interest on a certain sum of money at 5% per annum for 4 years and 3 years differs by Rs. 42. What is the sum?

The simple interest on a sum of Rs 1550 for 2 yrs is Rs 20 more than the simple interest on Rs 1450 for the same duration (the rate of interest is the same in both the cases). Find the rate of interest.