S Purkayastha Solutions for Chapter: Percentage and Its Applications, Exercise 4: Check Point

In what time will money deposited in a bank will double itself if the rate of interest is $12\frac{1}{2}\%$ per annum.

What sum of money will amount to $₹7800$ at the rate of $6\%$ per annum, on simple interest in $5$ years$?$

At what rate per cent per annum will $₹6950$ 6950 produce $₹347.50$ 347.50 as simple interest in $5$ 5 months?

In what time will $₹1860$ amount to $₹2348.25$, if simple interest is calculated at $7\frac{1}{2}\%$ per annum.

At what rate per cent annum will $₹1640$ amount to $₹1968$ in $2\frac{1}{2}$ years.

At what rate per cent per annum will sum triple itself in $16$ years

Simple interest on a certain sum is $\frac{16}{25}$ of the sum. Find the rate per cent and the time if both are numerically equal.

Hari borrowed $₹12600$ from a money lender at $15\%$ per annum simple interest. After $1$ year, he paid $₹7070$ and gave a buffalo to clear off the debt. What is the cost of the buffalo?