What is Interest

Q.

Find the interest on $Rs1200$ at $6\%$ per annum for $146days.$

Q.

If the time for which Interest is calculated is doubled, then how does the Simple Interest change?

1. It gets halved.

2. It gets doubled.

3. It gets tripled

4. It doesn't change

Q. Sheela deposits ₹ 5400 and got back an amount of ₹ 6000 after a year. Find the simple interest she received.

1. 700
2. 500
3. 600
4. 400

Q.

A payday loan company charges $4\%$ interest for a two-week period. What would be the annual interest rate from that company?

Q.

The principal is $₹625$ and simple interest is $₹55$ then the amount will be.

1. $₹570$

2. $₹680$

3. $₹600$

4. $₹750$

Q.

Rohit invested $₨10,000$ at $18\%$ p.a. $3$ years later , he invested another $₨5,000$. What amount will he get $6$ years hence?

Q. A sum triples itself in three years at simple interest. In how many years will the same sum become nine times itself at the same rate?

1. 18
2. 9
3. 12
4. 27

Q. Write an algebriac expression for the simple interest to be paid, using principal and the rate of simple interest and times. Also find the amount.

Q.

We get back some percentage of our money from the bank.

1. True

2. False

Q.

The rate of interest is the interest earned on every ₹ ________ invested.

1. 100

2. 1000

3. 10

4. 50

Q. A certain sum is to be invested for a certain time at simple interest at $15$% p.a., such that there is an increase of $75$% in the sum. Find the time.

1. $4$ years
2. $6$ years
3. $5$ years
4. $7$ years

Q. A man saves $600$ with a bank that pays simple interest of 7% p.a. How long will it take before he has a total amount of $936$?