Question

what principal will amount to rs 3960 in 7 year at 14%​

Answer 1

Answer:

4040.82

Step-by-step explanation:

P = A/ n r

A =:3960, r= 14/100, t = 7

principal p =?

p = 3960/ ( 14/100 × 7)

p = 3960 × 100/98 = 4040.82

Answer 2

$Given \: Amount (A) = Rs \: 3960 ,$

$Time (T) = 7 \: years ,$

$Rate \: of \: interest (R) = 14\% ,$

$Let \: Principal = P$

$\boxed{ \pink{ P\Big( 1 + \frac{TR}{100}\Big) = A }}$

$\implies P\Big( 1 + \frac{7 \times 14}{100} \Big) = 3960$

$\implies P\Big( 1 + \frac{98}{100} \Big) = 3960$

$\implies P\Big( \frac{100+98}{100} \Big) = 3960$

$\implies P\Big( \frac{198}{100} \Big) = 3960$

$\implies P= 3960 \times \frac{100}{198}$

$\implies P = Rs \: 2000$

Therefore.,

$\red{ Principal }\green { = Rs \: 2000}$

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