Question

please answer this question it's urgent ...and if you don't know don't post unnecessary here...Q - 18 I need..​

Answer 1

Answer:

S.I = 7200 P= 3024 ,R= ? T= 4 S.I = P×R×T/100. 7200=3024×4×R/100.

Answer 2

Question :-

At what rate will Rs 7200 fetch a Simple Interest of Rs 3024 in 4 years?

Answer :-

• The rate is 10.5%.

Given :-

• The Principal is Rs 7200.
• The Simple Interest is Rs 3024.
• The Time is 4 years.

To find :-

• The Rate.

Step-by-step explanation :-

The question has given us the Principal, Simple Interest and Time.

We have to find the Rate.

Lets assume that the Rate is r.

We know that :-

${\boxed {\bf \dfrac{P \times R \times T}{100} = SI}}$

Lets apply this formula!

Substituting the values, we get :-

$\sf \dfrac{7200 \times r \times 4}{100} = 3024$

Multiplying 7200 by 4,

$\sf \Rightarrow \dfrac{28800 \times r}{100} = 3024$

Multiplying 28800 by r,

$\sf \Rightarrow \dfrac{28800r}{100} = 3024$

Transposing 100 from LHS to RHS, changing it's sign,

$\sf \Rightarrow 28800r = 3024 \times 100$

On multiplying,

$\sf \Rightarrow 28800r = 302400$

Transposing 28800 from LHS to RHS, changing it's sign,

$\sf \Rightarrow r = \dfrac{302400}{28800}$

Dividing 302400 by 28800,

$\sf \Rightarrow r = 10.5$

So, Rs 7200 will fetch a Simple Interest of Rs 3024 in 4 years at the rate of 10.5% per annum.