Question

Graphical method

x+y=5 and 3x-y=3​

Answer 1

Answer:

Answer:-

Given:-

Principal (P) = Rs. 3,10,000

Rate of interest (R) = 10 %

Time period (T) = 3 years.

We know that;

\begin{gathered} \boxed{\sf \: Amount(A) = P \bigg(1 + \frac{R}{100} \bigg) ^{T}} \\ \end{gathered}

Amount(A)=P(1+

100

R

)

T

Hence,

\begin{gathered} \implies \sf \: A = 310000 \bigg( 1 + \frac{10}{100} \bigg) ^{3} \\ \\ \\ \implies \sf \: A = 310000 \bigg( \frac{100 + 10}{100} \bigg) ^{3} \\ \\ \\ \implies \sf \: A = 310000 \times \bigg( \frac{110}{100} \bigg) ^{3} \\ \\ \\ \implies \sf \: A = 310000 \times \frac{11}{10} \times \frac{11}{10} \times \frac{11}{10} \\ \\ \\ \implies \boxed{\sf \: A = Rs. \: 4,12,610} \\ \end{gathered}

⟹A=310000(1+

100

10

)

3

⟹A=310000(

100

100+10

)

3

⟹A=310000×(

100

110

)

3

⟹A=310000×

10

11

×

10

11

×

10

11

⟹

A=Rs.4,12,610

∴ Neha receives Rs. 4,12,610 at the end of 3 years.