Arihant Expert Team Solutions for Exercise 2: PRACTICE QUESTIONS for Phase I

A man gets a simple interest of $1000$on a certain principal at the rate of$5\%$ per annum in$4$years. What compound interest will the man get on twice the principal in two years at the same rate?

A sum of$8000$is lent for $1$ year at $10\%$ per annum compound interest. If the interest is compounded half-yearly, Calculate the amount?

The difference between simple interest and compound interest on a certain sum of money for$2yr$ at $5\%$ per annum is $10$. Find the sum?

In what time will $15625$ amount to $17576$ at $8\%$ compound interest per annum, interest being compounded half-yearly?

A borrowed$4800$ from B at $9\%$ per annum SI for$3$ yr. He, then added some more money to the borrowed sum and lent it to C for the same period at $12\%$per annum rate of interest. If A gains$720$ in the whole transaction, how much money did he add from his side?

The simple interest accrued on a sum of certain principal is $1200$ in$4yr$ at the rate of $8\%$ per annum. What would be the simple interest accrued on thrice of that principal at the rate of$6\%$ per annum in$3$ year?

A man buys a music system valued at$8000$. He pays$3500$at once and the rest $18$months later. On which he is charged simple interest at the rate of $8\%$ per annum. Find the total amount he pays for the music system?

A sum of$8000$ was lent partly at $7\%$ and partly at $9\%$ simple interest. If the total annual interest be $620$, the ratio in which the money was lent at given rates is?