Question

in what time will Rs 64000 amount to 68291 at 5 % per annum payable half year ​

Answer 1

Amount=P(1+R2×100)2×t

68921=64000(1+52×100)2×t

6892164000=(1+140)2×t

(4140)3=(4140)2×t

2t=3

t=32

t=112 years

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Answer 2

$\huge{\boxed{\boxed{\mathfrak{ \red{answer }}}}}</p><p></p><p>$

$ca = p(1+ \frac{r}{100} 100)^{2t} </p><p></p><p>$

$69821=64000(1 + \frac{5}{100}){}^{2t} </p><p></p><p></p><p></p><p>$

$\frac{69821}{64000}= (</p><p></p><p>\frac{41}{40}) {}^{2t} </p><p></p><p></p><p></p><p>$

$3=2t</p><p></p><p>$

$t = \frac{3}{2}$

$Hence \: The \: required \: time \: is  \: 1 \times \frac{1}{2} Years.</p><p></p><p>$