Question

Find the simple interest of Rs. 400 at 5% for 5 years.​

Answer 1

Answer:

its correct I hope you understand

Answer 2

Solution:-

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$\large\to{\underbrace{\underline{\sf{Understanding\:the\:concept:-}}}}$

◍ Here it is given in the question that the principal, rate of interest and time that is Rs. 400, 5% per annum and 5 years respectively. Now, the question has asked us to find the simple interest.

✩ HOW TO DO:-

$\implies$ To find the simple interest we have to use a certain formula. First of all we have to put the values in the formula and after that by solving it we will get the simple interest.

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ANSWER:-

◈ The simple interest is Rs. 100.

GIVEN:-

☆ Principal = Rs. 400

☆ Rate of Interest = 5% per annum

☆ Time = 5 years

TO FIND:-

• Here we have to calculate the simple interest.

SOLVING STEP BY STEP:-

• We have to use a certain formula.
• Put the values in the formula.
• Solve it.
• Final digits will be the answer.

We know that:-

$\blue \bigstar \: \underline {\boxed{ \rm \purple{Simple \: Interest = \dfrac{P \times R \times T}{100}}}}$

Here,

• P = 400
• R = 5%
• T = 5 years

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So let's solve it!

• Finding the SI:-

$\dashrightarrow \sf{SI = \dfrac{400 \times 5 \times 5}{100} }$

$\dashrightarrow \tt{Cancelling \: 400 \: by \: 100.}$

$\dashrightarrow \sf{SI = \dfrac{4 \!\!\!\not0 \!\!\!\not0 \times 5 \times 5}{1 \!\!\!\not0 \!\!\!\not0} }$

$\dashrightarrow \sf{SI = \dfrac{4 \times 5 \times 5}{1} }$

$\dashrightarrow \sf{SI = 4 \times 5 \times 5}$

$\dashrightarrow \sf{SI = 20 \times 5}$

$\dashrightarrow \sf{SI = 20 \times 5 = 100}$

$\green \maltese \: \underline {\boxed{ \rm \orange{Simple \: Interest = Rs. \: 100}}}$

Thus, we got the answer.

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Abbreviations used:-

• SI = Simple Interest
• P = Principal
• R = Rate
• T = Time

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