Question

6. Find the simple interest for the following bank deposits by unitary
method.
a.
Principal = 500, Rate = 5% and Time = 3 years​

Answer 1

Step-by-step explanation:

Simple interest = PRT/100

= 500 × 5 × 3 / 100

= 75

Rs. 75 is the SI

Answer 2

Given :

• Principal = 500
• Rate = 5%
• Time = 3 years

To Find :

• Simple Interest = ?

Solution :

Here,

• P = 500
• R = 5%
• T = 3 years

Formula for finding SI (Simple Interest) :-

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$\star \ \boxed{\sf{\pink{SI = \dfrac{P \times R \times T}{100}}}}$

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$\underline{\bf{\dag} \:\mathfrak{Substituting \ Values \ in \ the \ formula \ :}}$

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$:\implies\sf SI = \dfrac{500 \times 5 \times 3}{100} \\\\\\:\implies\sf SI = \cancel\dfrac{7500}{100} \\\\\\:\implies\boxed{\frak{\purple{SI = 75}}}$

$\therefore\underline{\textsf{ Hence, simple interest is rupees \textbf{75}}}.$

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$\qquad\qquad{\underline{\underline{\dag \: \bf\:More \: Formulae\: :}}}$⠀⠀

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

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

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