Challenges on Simple Interest

Q. An amount of $\$1750$ was divided into two parts. The first part was deposited for 2 years at 15% per annum in a bank. The second part was deposited for 3 years at 16% per annum at another bank. Interest received on the two parts adds up to $\$624$. The second part deposited in bank was $\$$ .

Q.

The ratio of simple interest earned on investing the same amount for 12 years and 18 years at the same rate of interest is :.

1. 4
2. 5
3. 2
4. 3

Q. Joe invested an amount of $\$5000$ divided in two different schemes A and B at the simple interest rate of 5% p.a. and 3% p.a. respectively. If the total amount of simple interest earned in 2 years be $\$380$, then

1. The amount invested in Scheme A is $\$3000$
2. The amount invested in Scheme B is $\$2000$
3. The amount invested in Scheme A is $\$2000$
4. The amount invested in Scheme B is $\$3000$

Q. Frank paid the interest on the loan he bought 10 years ago is $\$4500$ at a simple interest rate of 15%. What is the amount he borrowed?

1. $\$1500$
2. $\$3000$
3. $\$5000$
4. $\$6000$

Q. If an amount of $\$640$ is borrowed at a simple rate of $15\%$, then calcuate the final amount to be repaid after a period of 2 year (in dollars).

1. 832

Q. Jack borrowed $\$1000$ from a friend for a simple interest rate of $6\%$ per annum. He returned his friend $\$1300.$ How long did Jack take to return the money
years

Q. Sam borrowed $ 500 from a bank at 9 % per annum for 2 years. Then he lent this sum to Rockey at 10 % per annum for the same period. Sam gained(in dollars) from this transaction.

Q. An amount of $\$1750$ was divided into two parts. The first part was deposited for 2 years at 15% per annum in a bank. The second part was deposited for 3 years at 16% per annum at another bank. Interest received on the two parts adds up to $\$624$. The second part deposited in bank was $\$$ .

Q. Find the rate if Randy invested a principal of $\$700$, and earned $\$196$ as the simple interest in 4 years.
%

Q. Chen and Hermione took a loan of $\$4000$ each at 15% per annum for $3\frac{1}{2}$ years and 5 years respectively. Then, the difference in the interest paid by them is (in dollars)

1. 900