# Simple Interest

#### Basic Computer Knowledge Test Questions and Answers

1.

A man borrowed some amount, after 3 years he paid Rs.10,400/- with 10% interest, then how much Amount he borrowed?

A.) Rs.7000/-
B.) Rs.8000/-
C.) Rs.9000/-
D.) Rs.1000/-

principal P = ?
Rate of interest R = 10%
Time T = 3 years
Accumulated Amount A = Rs.10400/-
A = P + I
A = P + PTR/100
A = P(1+ TR/100)
Rs.10400/- = P [1 + 3*10/100]
Rs.10400/- = P [1/1 + 3/10]
Rs.10400/- = P [10+3/10] = P[13/10]
Rs.10400/- = P * 13/10
==> P = Rs.104000/13
==> P = Rs.8000/-

#### Basic Computer Knowledge Test Questions and Answers

2.

A man took some money for borrowed, for 3 years the total will be Rs.4000 and 5 years it will be Rs.5000/-. Then how much amount he borrowed?

A.) Rs.500/-
B.) Rs.1500/-
C.) Rs.2500/-
D.) Rs.1000/-

3 years --------> Rs.4000/-
5 years --------> Rs.5000/-
~                    ~
------------------------------
2 years ----> Rs.1000/-
1 year  -----> Rs.500/-
3 years × Rs.500/- = Rs.1500/-
P = Rs.4000/- - Rs.1500/- = Rs.2500/-
P = Rs.2500/-

#### Basic Computer Knowledge Test Questions and Answers

3.

A man took some money for borrowed, for 2 years the total will be Rs.9000/- and 5 years it will be13, Rs.500/-. Then how much amount he borrowed?

A.) Rs.4500/-
B.) Rs.6000/-
C.) Rs.5000/-
D.) Rs.5500/-

2 years --------> Rs.9000/-
5 years --------> Rs.13500/-
~                 ~
-----------------------------
3 years ----> Rs.4500/-
1 year -----> Rs.1500/-
2years × Rs.1500/- = Rs.3300/-
P = Rs.9000/- - Rs.30000/- = Rs.6000/-
P = Rs.6000/-

#### Basic Computer Knowledge Test Questions and Answers

4.

A person took some amount with some interest for 1 years, but increase the interest for 2%, he paid Rs.60/- extra, then how much amount he took?

A.) Rs.3000/-
B.) Rs.4000/-
C.) Rs.2900/-
D.) Rs.2000/-

Only 1 year = 60/1 = 60
Rate of Interest = 2%
100/2% × 60 = Rs.3000/-
P = Rs.3000/-

#### Basic Computer Knowledge Test Questions and Answers

5.

A person took some amount with some interest for 2 years, but increase the interest for 1%, he paid Rs.120/- extra, then how much amount he took?

A.) Rs.5500/-
B.) Rs.6000/-
C.) Rs.4000/-
D.) Rs.7000/-

2 years = Rs.120/-
year = 120/2
Rate of Interest = 1%
100/1% × 120/2 = Rs.6000/-
P = Rs.6000/-

#### Basic Computer Knowledge Test Questions and Answers

6.

A person took some amount with some interest for 3 years, but increase the interest will be increase From 7% to 9%. He paid Rs. 240 extra, then howmuch amount he took?

A.) Rs.7000/-
B.) Rs.4000/-
C.) Rs.5500/-
D.) Rs.6000/-

2% ------> Rs.240/-
3 years = Rs.240/-
1 year = 240/3 = Rs.80/-
100/2% × 80 = Rs.4000/-
P = Rs.4000/-

#### Basic Computer Knowledge Test Questions and Answers

7.

A borrow took by a man, for every 5 years it will be doubled, then what is the rate of the interest?

A.) 15%
B.) 20%
C.) 22%
D.) 23%

P = 1 , I = 1 , T = 5years R = ?
I = PTR/100
1 = 1×5×R/100
R = 20%

#### Basic Computer Knowledge Test Questions and Answers

8.

A borrow took by a man, for every 8 years it will be 3 times, then what is the rate of the interest?

A.) 15%
B.) 20%
C.) 25%
D.) 28%

P = 1 , I = 2 , T = 8years R = ?
I = PTR/100
2 = 1×8×R/100
R = 25%

#### Basic Computer Knowledge Test Questions and Answers

9.

A borrow took by a man, for every 12 years it will be 5 times, then what is the rate of the interest?

A.) 33 1/3%
B.) 18 1/3%
C.) 33 2/3%
D.) 34%

P = 1 , I = 4 , T = 12years R = ?
I = PTR/100
4 = 1×12×R/100
R = 33 1/3%

#### Basic Computer Knowledge Test Questions and Answers

10.

A borrow taken by a man, for every 5 years it will be doubled, then how much time it will be taken

A.) 12years
B.) 15years
C.) 16years
D.) 13years