Question

find the simple interest, when principal is Rs. 4500, time 7 years and rate is 5% per annum​

Answer 1

Answer:

SI = PRT/ 100

= 4500×5×7/100

= 45×5×7

SI = 1575 rupees

Explanation:

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Answer 2

Given :

• Principal = Rs.4500
• Time = 7 years
• Rate of interest = 5% per annum

To Find :

• The Simple interest

Solution :

Simple interst is calculated by ,

$\\ \star \: {\boxed{\purple{\sf{SI = \dfrac{PTR}{100} }}}}$

$\\ \sf{Here}\begin{cases} \sf{SI \: is \: simple \: interest} \\ \sf{P \: i s\: principal} \\ \sf{T \: is \: time} \\ \sf{R \: is \:rate \: of \: interest }\\ \end{cases}$

We have ,

• P = Rs. 4500
• R = 5%
• T = 7 years

Substituting the values in the formulae ;

$\\ : \implies \sf \:SI = \dfrac{4500 \times 7 \times 5}{100}$

$\\ : \implies \sf \:SI = \dfrac{4500 \times 35}{100}$

$\\ : \implies \sf \: SI = \dfrac{157500}{100}$

$\\ : \implies{\underline{\boxed{\pink{\sf{SI = Rs.1575}}}}} \: \bigstar$

$\\ \therefore{\underline{\sf{Hence , The \: simple \: interest \: on \: given \: sum \: is \: \bold{ Rs. \: 1575}}}}$