Question

Math me avkln or smkln k important questions

Answer 1

Answer:

Step-by-step explanation:

Comparing Quantities

Exercise 8.3

Question 1: Calculate the amount and compound interest on

(a) Rs 10,800 for 3 years at 12.5% per annum compounded annually.

Answer:  

A

=

P

(

1

+

R

100

)

t

P = 10800, R  

=

12

1

2

%

and t = 3 years

So,  

A

=

10800

(

1

+

25

200

)

3

=

10800

(

1

+

1

8

)

3

=

10800

(

9

8

)

3

=

10800

×

9

8

×

9

8

×

9

8

=

15377.34

So, Interest  

=

A

–

P

=

15377.54

−

10800

=

4577.34