Question

please solve this sum using formula​

Answer 1

Answer:

$\text{Let Sum = P }$

$\text{→C.I = 4240}$

$\text{→N = 2 Years}$

$R_{1} = 10\% \: \textbf{and} \: R_{2} = 15\%$

$⇒A = P (1 + \frac{r_{1}}{100} )(1 + \frac{r_{2}}{100} )$

$\textbf{For Successive Years}$

$⇒ A = P = (1 + \frac{10}{100} )(1 + \frac{15}{100} )$

$⇒ A = P( \frac{11}{10} )( \frac{23}{20} )$

$⇒ A = \frac{253 P}{200}$

$⇒C.I = A - P$

$⇒4240 = \frac{253P}{200} - P$

$⇒4240 = \frac{53P}{200}$

$⇒848000 = 53P$

$⇒P = \frac{848000}{53} = ₹16000$

$\\ \\ \\ \\ \\ \\ \\ \sf \colorbox{gold} {\red(ANSWER ᵇʸ ⁿᵃʷᵃᵇ⁰⁰⁰⁸}$