Question

On RS 1000 for 7 years at 12 1/2 per annum
​

Answer 1

Step-by-step explanation:

Given, Principal P=Rs.1000

Rate R=10% p.a=

2

10%

half yearly=5% half yearly

Time n=1

2

1

years=3 half years

Amount =P(1+

100

R

)

n

=Rs.1000(1+

100

5

)

3

=Rs.1000(1+

20

1

)

3

=Rs.1000(

20

21

)

3

=Rs.1000×

8000

9261

=Rs.1157.625

=Rs.1157.63

Compound interest =Rs.(1157.63−1000)=Rs.157.63.

Answer 2

Answer:

875

Step-by-step explanation:

Simple interest = $\frac{PRT}{100}$ where P is Principal , R is rate , Y is years

Simple interest = $\frac{PRT}{100}$

$\frac{1000*\frac{25}{2}*7 }{100} \\\\10*\frac{25}{2}*7 }\\\\70*\frac{25}{2} = 875$