Math, asked by vandita1234, 2 months ago

यदि 500 रु० की राशि प्रति वर्ष संयोजित होने पर दो वर्षों में 583.20 रु० हो जाती है, तो प्रति वर्ष ब्याज की दर ज्ञात कीजिए।​

Answers

Answered by prettykitty664
3

Step-by-step explanation:

Principal amount (P) = 500

Compound amount(A )= 583.20

Time duration(t) = 2 years

Rate(r) =?

A=P(1+r/100)^t

583.20=500(1+r/100)^2

729/625=(1+r/100)^2

1+r/100=27/25

r/100=2/25

r=8%

So the correct answer is option C.

C. मूलधन (P) = 500

मिश्रधन (A) = 583.20

समय अवधि (t) = 2 वर्ष

दर (r) =

A = P(1 + r / 100) ^ t

583.20 = 500 (1 + r / 100) ^ 2

729/625 = (1 + r / 100) ^ 2

1 + r / 100 = 27/25

r / 100 = 2/25

r = 8%

Answered by BrainlyPopularman
81

दिया है :

• मूलधन (P) = 500 ₹

• मिश्रधन (C.I.) = 583.20 ₹

• समय (t) = 2 वर्ष

ज्ञात करना है :

• दर (r) = ?

हल :

• हम जानते है कि –

  \\ \implies \pink{ \boxed{ \bf C.I. =P \left(1+\dfrac{r}{100} \right)^t}}\\

• मान रखने पर –

 \\\implies\bf 583.20=500\left(1+\dfrac{r}{100} \right)^2\\

 \\\implies\bf  \dfrac{583.20}{500} = \left(1+\dfrac{r}{100} \right)^2\\

 \\\implies\bf  1.1664= \left(1+\dfrac{r}{100} \right)^2\\

 \\\implies\bf  \sqrt{1.1664}=1+\dfrac{r}{100}\\

 \\\implies\bf1.08=1+\dfrac{r}{100}\\

 \\\implies\bf1.08 - 1 = \dfrac{r}{100}\\

 \\\implies\bf0.08= \dfrac{r}{100}\\

 \\\implies\bf0.08 \times 100=r\\

 \\\implies\bf r = 8\\

• अतः –

 \\\implies  \orange{\large{ \boxed{\bf r = 8\%}}}\\

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