Question

how much time will rupees 650 becomes 81 2.50 Rupees at 6 complete 1by 4 %​

Answer 1

The times taken is approximately 4 months.

Step-by-step explanation:

The formula to compute the compounded amount is:

$A=P[1+\frac{r}{100}]^{t}$

Given:

A = Rs. 812.50

P = Rs. 650

r = $6\frac{1}{4}\%$ p.a.

Compute the time it takes (t) as follows:

        $A=P[1+\frac{r}{100}]^{t}$

 $812.50=650[1+\frac{6.25}{100}]^{t}$

   $\frac{812.50}{650}=[1+0.0625]^{t}$

$1.25=[1.0625]^{t}$

       $\ln(1.25)=t\times \ln (1.0625)$

 $t=\frac {\ln (1.25)}{\ln(1.0625)}$

          $t=0.272\ years$

$t\approx 4 months$

Thus, the times taken is approximately 4 months.

Answer 2

8) IN HOW MUCH TIME RS.650 BECOMES RS.812.50 AT 6 1/4

ANSWER = 4yr