Question

11. A person deposited a sum of rs.9000 in bank. After 2 years he withdraw rs. 4000 and at the end of 3 years he
received amount of rs. 8300. Find the rate of simple interest.
​

Answer 1

Answer:

Let rate be r% p.a

After two years,

I=

100

18000r

=180r

∴ after two years, A=9000+180r

after withdrawl =P

2

=5000+180r

Total amount of be received after 5 years

=9000+

100

9000×5×r

=450r+9000=4000+8300=12300

=9000+450r=12300

⇒r=

450

3300

=7.34%

Answer 2

Step-by-step explanation:

ANSWER

Let the cloth sold by the agent =x

Comission of sales of cloth =2.5%

Commission = Rs12.50

According to the problem,

2.5%ofx= Rs12.50

100

2.5

×x=12.50

x=

2.5

12.50×100

x=

2.5

1250

After cancellation we get,

x= Rs.500