Question

what principal will earn an interest of Rs 130 at the rate of 3 1 over 4 in 5 years ?

Answer 1

αղsաҽɾ

The principal will be $ 800

sօlմԵíօղ

Simple interest = $ 130

Time. = 5 years

Rate in mixed fraction is

$rate = 3 \times \frac{1}{4}$

Rate in simple fraction will be

$rate = \frac{13}{4}$

Formula for Simple interest is

$\frac{prt}{100}$

Now, Applying the above formula.

$130 = \frac{p \times 5 \times 13}{100 \times 4}$

$130 = \frac{13p}{80}$

$10400 = 13p$

800. = P

So , Principal of the given amount is

$ 800

Hope it may help you

Answer 2

Rs. 800.....................|